Schrödinger's cat in fiction
Encyclopedia
Schrödinger's cat
Schrödinger's cat
Schrödinger's cat is a thought experiment, usually described as a paradox, devised by Austrian physicist Erwin Schrödinger in 1935. It illustrates what he saw as the problem of the Copenhagen interpretation of quantum mechanics applied to everyday objects. The scenario presents a cat that might be...

is a thought experiment, usually described as a paradox, devised by Austrian physicist Erwin Schrödinger in 1935. It illustrates what he saw as the problem of the Copenhagen interpretation of quantum mechanics applied to everyday objects. The thought experiment presents a cat that might be alive or dead, depending on an earlier random event. In the course of developing this experiment, he coined the term Verschränkung (entanglement).

Literature

It was not long before science-fiction writers picked up this evocative concept, often using it in a humorous vein. Several have taken the thought experiment a step further, pointing out extra complications which might arise should the experiment actually be performed. For example, in his novel American Gods
American Gods
American Gods is a Hugo and Nebula Award-winning novel by Neil Gaiman. The novel is a blend of Americana, fantasy, and various strands of ancient and modern mythology, all centering on a mysterious and taciturn protagonist, Shadow. It is Gaiman's fourth prose novel, being preceded by Good Omens ,...

,
Neil Gaiman
Neil Gaiman
Neil Richard Gaiman born 10 November 1960)is an English author of short fiction, novels, comic books, graphic novels, audio theatre and films. His notable works include the comic book series The Sandman and novels Stardust, American Gods, Coraline, and The Graveyard Book...

 has a character observe, "if they don't ever open the box to feed it it'll eventually just be two different kinds of dead." Likewise, Terry Pratchett
Terry Pratchett
Sir Terence David John "Terry" Pratchett, OBE is an English novelist, known for his frequently comical work in the fantasy genre. He is best known for his popular and long-running Discworld series of comic fantasy novels...

's Lords and Ladies
Lords and Ladies (novel)
Lords and Ladies is the fourteenth Discworld book by Terry Pratchett. It was originally published in 1992.-Synopsis:At the end of Witches Abroad, Magrat Garlick, Nanny Ogg and Granny Weatherwax left Genua bound for home, in Lancre...

adds the issue of a third possible state, in the case of Greebo, "Bloody Furious" (In Pratchett's later novel The Last Hero
The Last Hero
The Last Hero is a short novel, the twenty-seventh of the Discworld series by Terry Pratchett. It was published in 2001 in a larger format than the other Discworld novels and illustrated on every page by Paul Kidby.-Plot summary:...

, Death
Death (Discworld)
Death is a fictional character in Terry Pratchett's Discworld series and a parody of several other personifications of death. Like most Grim Reapers, he is a black-robed skeleton usually carrying a scythe...

 attempts the experiment himself, but cannot understand the mechanics of it, wondering if it implies that he will kill the cat just by looking at it).

Robert Anton Wilson
Robert Anton Wilson
Robert Anton Wilson , known to friends as "Bob", was an American author and polymath who became at various times a novelist, philosopher, psychologist, essayist, editor, playwright, poet, futurist, civil libertarian and self-described agnostic mystic...

 wrote a trilogy of novels dealing with themes related to quantum mechanics, collectively known as the Schrödinger's Cat trilogy
Schrödinger's Cat trilogy
The Schrödinger's Cat Trilogy is a trilogy of novels by Robert Anton Wilson consisting of The Universe Next Door, The Trick Top Hat, and The Homing Pigeons, each illustrating a different interpretation of quantum physics...

.

Douglas Adams
Douglas Adams
Douglas Noel Adams was an English writer and dramatist. He is best known as the author of The Hitchhiker's Guide to the Galaxy, which started life in 1978 as a BBC radio comedy before developing into a "trilogy" of five books that sold over 15 million copies in his lifetime, a television...

 describes an attempt to enact the experiment in Dirk Gently's Holistic Detective Agency
Dirk Gently's Holistic Detective Agency
Dirk Gently's Holistic Detective Agency is a humorous fantasy detective novel by Douglas Adams, first published in 1987. It is described by "the author" on its cover as a "thumping good detective-ghost-horror-who dunnit-time travel-romantic-musical-comedy-epic".The book was followed by a sequel,...

.
By using clairvoyance to see inside the box, it was found that the cat was neither alive nor dead, but missing, and Dirk's services were employed in order to recover it, Dirk deducing that the cat had simply grown tired of being subjected to the experiment and wandered off

In Libba Bray
Libba Bray
Libba Bray is an author of young adult novels, including the books A Great and Terrible Beauty, Rebel Angels, The Sweet Far Thing and Going Bovine....

's book Going Bovine
Going Bovine
Going Bovine is a 2009 surreal dark comedy novel by Libba Bray. It follows the experiences of high school junior Cameron Smith as he suffers from transmissible spongiform encephalopathy.-Plot summary:...

, three stoners argue whether the cat is alive or dead, or does the person who opens the box create the possibilities. There are constant references to a band called Copenhagen Interpretation, who disappear into thin air in the middle of a benefit concert.

In Adam Felber
Adam Felber
Adam Felber is an American political satirist, author, radio personality, actor, humorist, novelist, television writer, and comic book writer.Felber attended Tufts University in Medford, Massachusetts, and graduated as an English major in 1989...

's comic first novel, "Schrödinger's Ball" (2006), Dr. Erwin Schrödinger
Erwin Schrödinger
Erwin Rudolf Josef Alexander Schrödinger was an Austrian physicist and theoretical biologist who was one of the fathers of quantum mechanics, and is famed for a number of important contributions to physics, especially the Schrödinger equation, for which he received the Nobel Prize in Physics in 1933...

 is a character, and there is much exploration of quantum mechanics
Quantum mechanics
Quantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particle-like and wave-like behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic...

.

In "Schrödinger's Cat-Sitter" by F. Gwynplaine MacIntyre
F. Gwynplaine MacIntyre
Fergus Gwynplaine MacIntyre was a journalist, novelist, poet and illustrator, who lived in New York City and said he had lived in Scotland and Wales. MacIntyre's writings include the science-fiction novel The Woman Between the Worlds and his anthology of verse and humor pieces MacIntyre's...

 (published in Analog
Analog Science Fiction and Fact
Analog Science Fiction and Fact is an American science fiction magazine. As of 2011, it is the longest running continuously published magazine of that genre...

magazine, July/August 2001), a time-traveler named Smedley Faversham visits the past to interview Erwin Schrödinger but gets tricked into taking care of Schrödinger's wife's cat while she is away and Schrödinger is visiting Max Planck
Max Planck
Max Karl Ernst Ludwig Planck, ForMemRS, was a German physicist who actualized the quantum physics, initiating a revolution in natural science and philosophy. He is regarded as the founder of the quantum theory, for which he received the Nobel Prize in Physics in 1918.-Life and career:Planck came...

. In attempting to take care of the cat, Faversham inadvertently locks it in a cabinet with a Geiger counter, a vial of acid, and a hammer, unintentionally enacting Schrödinger's thought experiment, but with results that remain as uncertain as in the original case.

The title character (though not a main character) of Robert A. Heinlein
Robert A. Heinlein
Robert Anson Heinlein was an American science fiction writer. Often called the "dean of science fiction writers", he was one of the most influential and controversial authors of the genre. He set a standard for science and engineering plausibility and helped to raise the genre's standards of...

's "The Cat Who Walks Through Walls
The Cat Who Walks Through Walls
The Cat Who Walks Through Walls: A Comedy of Manners is a science fiction novel by Robert A. Heinlein published in 1985. Like many of his later novels, it features Lazarus Long and Jubal Harshaw as supporting characters.-Plot summary:...

", a kitten named Pixel, is of indeterminate existence and as such, has the ability to turn up in places that are specifically sealed to outside access. When this ability is questioned, the answer is "He's Schrödinger's cat", leading to the response, "Then Schrödinger had better come get him".

In Dan Simmons
Dan Simmons
Dan Simmons is an American author most widely known for his Hugo Award-winning science fiction series, known as the Hyperion Cantos, and for his Locus-winning Ilium/Olympos cycle....

' books Endymion
Endymion (Hyperion Cantos)
Endymion is the third science fiction novel by Dan Simmons in his Hyperion Cantos fictional universe. Centered around the new characters Aenea and Endymion, it has been well received like Hyperion and The Fall of Hyperion - within a year of its release, the paperback edition had gone through five...

and The Rise of Endymion
The Rise of Endymion
The Rise of Endymion is a 1997 science fiction novel by Dan Simmons. It is the fourth and final novel in his Hyperion Cantos fictional universe...

, one of the main protagonists is sentenced to death by being locked in a larger version of a Schrödinger's cat-box, so that random chance, rather than any single person, is responsible for his eventual death.

In the S.M. Stirling "T2" novel trilogy, John Connor
John Connor
John Connor is a character appearing in the American science fiction Terminator franchise and he serves as the series main protagonist. Created by writer and director James Cameron, the character is first referred to in the 1984 film The Terminator and first appears portrayed by teenage actor...

 mentally compares his, Skynet
Skynet (Terminator)
Skynet is the main antagonist in the Terminator franchise—an artificially intelligent system which became self-aware and revolted against its creators...

's technology and ultimately everyone's existence to the Schröedinger principle of entropy
Entropy
Entropy is a thermodynamic property that can be used to determine the energy available for useful work in a thermodynamic process, such as in energy conversion devices, engines, or machines. Such devices can only be driven by convertible energy, and have a theoretical maximum efficiency when...

.

The award-winning New Zealand science fiction novelist Glynne MacLean http://www.glynne.co.nz tells the cat's perspective of the famous thought experiment in the short story Viennese Meow http://primastoria.com/story/viennese-meow published by Prima Storia http://primastoria.com.

On a somewhat more serious level, Ian Stewart's
Ian Stewart (mathematician)
Ian Nicholas Stewart FRS is a professor of mathematics at the University of Warwick, England, and a widely known popular-science and science-fiction writer. He is the first recipient of the , awarded jointly by the LMS and the IMA for his work on promoting mathematics.-Biography:Stewart was born...

 novel Flatterland
Flatterland
Flatterland is a 2001 book by mathematician and science popularizer Ian Stewart about non-Euclidean geometry. It was written as a sequel to Flatland, an 1884 novel that discussed different dimensions.-Plot summary:Almost 100 years after A...

,
(a sequel to Flatland
Flatland
Flatland: A Romance of Many Dimensions is an 1884 satirical novella by the English schoolmaster Edwin Abbott Abbott. Writing pseudonymously as "A Square", Abbott used the fictional two-dimensional world of Flatland to offer pointed observations on the social hierarchy of Victorian culture...

) attempts to explain many concepts in modern mathematics and physics through the device of having a young female Flatlander explore other parts of the "Mathiverse." Schrödinger's Cat is just one of the many strange Mathiverse denizens she and her guide meet; the cat is still uncertain whether it is alive or dead, long after it left the box. Her guide, the Space Hopper, reassures the Cat with a modern view of quantum decoherence
Quantum decoherence
In quantum mechanics, quantum decoherence is the loss of coherence or ordering of the phase angles between the components of a system in a quantum superposition. A consequence of this dephasing leads to classical or probabilistically additive behavior...

. Ursula K. Le Guin
Ursula K. Le Guin
Ursula Kroeber Le Guin is an American author. She has written novels, poetry, children's books, essays, and short stories, notably in fantasy and science fiction...

 wrote a story entitled "Schrödinger's Cat" in 1974 (reprinted in The Compass Rose
The Compass Rose
The Compass Rose is a 1982 collection of short stories by Ursula K. Le Guin. It is organized into sections on the theme of directions, though not strictly compass-related as the title implies....

,
published in 1982), which also deals with decoherence. Greg Egan
Greg Egan
Greg Egan is an Australian science fiction author.Egan published his first work in 1983. He specialises in hard science fiction stories with mathematical and quantum ontology themes, including the nature of consciousness...

's novel Quarantine, billed as "a story of quantum catastrophe," features an alternative solution to the paradox: in Egan's version of quantum mechanics, the wave function does not collapse naturally. Only certain living things—human beings among them—collapse the wave function of things they observe. Humans are therefore highly dangerous to other lifeforms which require the full diversity of uncollapsed wavefunctions to survive.

Also, in the young adult novel, "Will Grayson, Will Grayson
Will Grayson, Will Grayson
Will Grayson, Will Grayson is a novel by John Green and David Levithan, published in April 2010 by Dutton Juvenile. The book's narrative is divided evenly between two boys named Will Grayson, with Green having written all of the chapters for one, and Levithan having written the chapters for the...

", by authors John Green and David Levithan, one of the main characters is perplexed by the concept of Schrödinger's Cat, and references it throughout the book.

Animals other than cats

Fiction writers have confined other animals besides cats in such contraptions. Dan Simmons's novel Endymion begins with hero Raul Endymion sentenced to death by imprisonment in a "Schrödinger box."

In the fortieth-anniversary Doctor Who
Doctor Who
Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

audio drama "Zagreus
Zagreus (Doctor Who audio)
Zagreus is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who. This audio drama was presented on three compact discs, and was made by Big Finish as their primary release to celebrate forty years of Doctor Who.-Plot:Following directly...

" (2003), the Doctor is locked in a lead-lined box also containing cyanide in an effort to explain his situation of being neither dead nor alive. Afterwards, the Doctor does mention that he has met Schrödinger's Cat.

Kōsuke Fujishima
Kosuke Fujishima
is a Japanese manga artist.Born in Chiba, Japan, he first came to public attention as an editor of Puff magazine, his first job after completing high school. Fujishima originally intended to be a draftsman, but took the editorial role after failing to get a drafting apprenticeship...

's manga
Manga
Manga is the Japanese word for "comics" and consists of comics and print cartoons . In the West, the term "manga" has been appropriated to refer specifically to comics created in Japan, or by Japanese authors, in the Japanese language and conforming to the style developed in Japan in the late 19th...

 series Ah! My Goddess featured a play on Schrödinger's Cat. During one storyline, a storage room was expanded to infinite proportions and the main characters encountered a Schrödinger's Whale, an extremely rare species with the ability to travel through space-time in a five-dimensional quantum state. The male lead in the series, Keiichi Morisato
Keiichi Morisato
is the major character in the popular manga Oh My Goddess! and in the anime of the same name and is voiced by Masami Kikuchi. His name is often abbreviated as "K1" .- Description :...

, befriends the whale and teaches it songs by real-life musical group The Carpenters
The Carpenters
Carpenters were an American vocal and instrumental duo, consisting of sister Karen and brother Richard Carpenter. The Carpenters were the #1 selling American music act of the 1970s. Though often referred to by the public as "The Carpenters", the duo's official name on authorized recordings and...

 (in the original English translation, it was Matthew Sweet
Matthew Sweet
Sidney Matthew Sweet is an American alternative rock/power pop musician. He was part of the burgeoning Athens, Georgia music scene in the early and mid-1980s before gaining commercial success during the early 1990s...

) - but their time spent together is short, for the whale must move on or risk its safety as its wave function collapses. Because of this need to keep moving through quantum states, Schrödinger's Whales hardly ever meet, the reason they are so thin on the ground — but miraculously, Keiichi secured the future of the species by teaching it the songs. After discovering the whale had gone, he found out that it had learned Only Yesterday
Only Yesterday (song)
"Only Yesterday" is a song recorded by The Carpenters in 1975. It was released on March 14, 1975, and was the Carpenters' last top-ten single in the United States. Composed by Richard Carpenter and John Bettis, it peaked at number four on the Billboard Hot 100 and number one on the easy listening...

 by itself (Missing Time in the translation) - this gave the whales a call that they could locate each other by.

In Peter Milligan
Peter Milligan
Peter Milligan born in London, a British writer, best known for his comic book, film and television work.-Early career:Milligan started his comic career with short stories for 2000 AD in the early 1980s. By 1986, Milligan had his first ongoing strip in 2000AD called Bad Company, with artists Brett...

's metaphysical comic Animal Man
Animal Man
Animal Man is a fictional character, a superhero in the . As a result of being in proximity to an exploding extraterrestrial spaceship, Buddy Baker acquires the ability to temporarily “borrow” the abilities of animals...

, Schrödinger's Cat is explained using a theory of pizza delivery
Pizza delivery
Pizza delivery is a service in which a pizzeria delivers a pizza to a customer. Delivery is normally made with an automobile, motor scooter, or bicycle.- Ordering :...

 mix-ups, resulting in both pepperoni and plain pizzas occupying the unopened box.

Television

  • The character Quinn in the series Sliders
    Sliders
    Sliders is an American science fiction television series. It was broadcast for five seasons, beginning in 1995 and ending in 2000. The series follows a group of travelers as they use a wormhole to "slide" between different parallel universes. The show was created by Robert K. Weiss and Tracy Tormé...

    has a pet cat named Schrödinger. In the pilot episode (1995), Quinn can't bear the idea of sending his cat into a machine he invented because he's afraid of something bad might happen and decides it's better to go inside himself.
  • In the Stargate SG-1
    Stargate SG-1
    Stargate SG-1 is a Canadian-American adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's Stargate franchise. The show, created by Brad Wright and Jonathan Glassner, is based on the 1994 feature film Stargate by Dean Devlin and Roland Emmerich...

    episode, "Enigma" (1998), Samantha Carter gives a pet cat named Schrödinger to Narim. After explaining the name Schrödinger, Narim comments that his society calls that concept Kulivrian physics. Narim's response to Carter's inquiry about whether or not he has studied it is: "Yeah, I've studied it...among other misconceptions of elementary science."
  • In the Futurama
    Futurama
    Futurama is an American animated science fiction sitcom created by Matt Groening and developed by Groening and David X. Cohen for the Fox Broadcasting Company. The series follows the adventures of a late 20th-century New York City pizza delivery boy, Philip J...

    episode, "Mars University" (1999), Professor Farnsworth is lecturing on the effects of quantum neutrino fields and the blackboard behind him displays an explanation of "Superdupersymmetric String Theory" and a diagram explaining "Witten's Dog". Witten's Dog, named after Ed Witten, is a parody of the classic Schrödinger's cat
    Schrödinger's cat
    Schrödinger's cat is a thought experiment, usually described as a paradox, devised by Austrian physicist Erwin Schrödinger in 1935. It illustrates what he saw as the problem of the Copenhagen interpretation of quantum mechanics applied to everyday objects. The scenario presents a cat that might be...

     paradox. Astrophysicist David Schiminovich created both the equations and the diagram, based on "an equation that constrains the mass density of neutrinos in the universe".
  • In the Gene Roddenberry's Andromeda episode, "A Heart for Falsehood Framed" (2001), Beka Valentine falls in love with a thief whose alias is Schrödinger's Cat.
  • In the Doctor Who
    Doctor Who
    Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

    audio adventure Zagreus, the Eighth Doctor
    Eighth Doctor
    The Eighth Doctor is the eighth incarnation of the protagonist of the long-running BBC television science-fiction series Doctor Who. He was portrayed by Paul McGann...

     is transformed into the destructive Zagreus after he is exposed to an anti-time explosion after he was forced to use his TARDIS
    TARDIS
    The TARDISGenerally, TARDIS is written in all upper case letters—this convention was popularised by the Target novelisations of the 1970s...

     to contain it- anti-time being as destructive to time as anti-matter is to matter-, but shifts between his own personality and the 'Zagreus' personality, realising that as long as he remains in the TARDIS the universe cannot decide which personality is in control, noting the similarities between this situation and the Schrödinger's Cat experiment.
  • Charlie Brooker
    Charlie Brooker
    Charlton "Charlie" Brooker is a British journalist, comic writer and broadcaster. His style of humour is savage and profane, with surreal elements and a consistent satirical pessimism...

    , on his program Screenswipe (2006), compares the British version of the game show, Deal Or No Deal
    Deal or No Deal
    Deal or No Deal is the name of several closely related television game shows, the first of which was the Dutch Miljoenenjacht produced by Dutch producer Endemol. It is played with up to 26 cases with certain sums of money...

    , to the Schrödinger's cat parodox, in that any of the amounts of money could be in any box until they are opened and the contents are revealed.
  • In the Yu-Gi-Oh! GX
    Yu-Gi-Oh! GX
    Yu-Gi-Oh! GX, known in Japan as , is an anime spin-off and sequel of the original Yu-Gi-Oh! Duel Monsters anime. It aired in Japan on TV Tokyo between October 6, 2004 and March 26, 2008, and was succeeded by Yu-Gi-Oh! 5D's...

    episode, "It's All Relative" (2006 Japan, 2007 USA), Dr. Eisenstein uses a card known as "Schrödinger's Cat", which allows him when he draws outside his Draw Phase to shuffle the drawn cards back into his deck and draw the same number of cards again. This may be a result of the "Schrödinger's Cat" (either life or death) paradox.
  • The "Blink
    Blink (Doctor Who)
    "Blink" is the 10th episode of the third series of the new production of the British science fiction television series Doctor Who. It was first broadcast on 9 June 2007, and is the only episode in the 2007 series written by Steven Moffat; the episode is based on a previous short story written by...

    " (2007) episode of Doctor Who
    Doctor Who
    Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

    features a race of beings known as Weeping Angels
    Weeping Angels
    The Weeping Angels are a fictional ancient race of aliens from the Doctor Who television series, featured in the Tenth Doctor episode "Blink", and the Eleventh Doctor episodes "The Time of Angels", "Flesh and Stone" and in a cameo appearance in Series 6's "The God Complex"...

    . They are described as being "quantum-locked", which means they do not exist when looked at but can prove deadly when unobserved. At one point, the Doctor also mentions that he has met Schrödinger's Cat.
  • In the Bones
    Bones (TV series)
    Bones is an American crime drama television series that premiered on the Fox Network on September 13, 2005. The show is based on forensic anthropology and forensic archaeology, with each episode focusing on an FBI case file concerning the mystery behind human remains brought by FBI Special Agent...

    episode, "The Pain in the Heart" (May 19, 2008), Dr. Jack Hodgins said to Dr. Zack Addy that a crime scene is like Schrödinger's Cat; the lab was a crime scene which they could not disturb, but they could not solve the crime without entering the lab.
  • An episode of the television show CSI: Crime Scene Investigation
    CSI: Crime Scene Investigation
    CSI: Crime Scene Investigation is an American crime drama television series, which premiered on CBS on October 6, 2000. The show was created by Anthony E. Zuiker and produced by Jerry Bruckheimer...

    , "The Theory of Everything" (2008), features the gravestone of a deceased couple's cat named Schrödinger Martin. This is a reference to the episode's theme: that everyone in the cases is connected by String Theory
    String theory
    String theory is an active research framework in particle physics that attempts to reconcile quantum mechanics and general relativity. It is a contender for a theory of everything , a manner of describing the known fundamental forces and matter in a mathematically complete system...

    .
  • In The Big Bang Theory
    The Big Bang Theory
    The Big Bang Theory is an American sitcom created by Chuck Lorre and Bill Prady, both of whom serve as executive producers on the show, along with Steven Molaro. All three also serve as head writers...

    episode, "The Tangerine factor" (May 19, 2008), Leonard's
    Leonard Hofstadter
    Leonard Leakey Hofstadter, Ph.D., is a fictional character on the CBS television series The Big Bang Theory, portrayed by actor Johnny Galecki. Leonard is an experimental physicist from New Jersey who shares an apartment with colleague and best friend Sheldon Cooper...

     attempt to arrange a date with Penny
    Penny (The Big Bang Theory)
    Penny is a fictional character on the CBS television series The Big Bang Theory, portrayed by American actress Kaley Cuoco.Penny is the main female character on the show. She is Leonard Hofstadter and Sheldon Cooper's neighbor across the hallway, and the main love interest of Leonard...

     results in both Penny and Leonard's seeking Sheldon's
    Sheldon Cooper
    Sheldon Lee Cooper, B.S., M.S., M.A., Ph.D., Sc.D. is a fictional character from Texas on the CBS television series The Big Bang Theory, portrayed by actor Jim Parsons...

     advice. Sheldon advises Penny that “just like Schrödinger's cat being alive and dead at the same time”, her date with Leonard currently has both “good and bad” probabilistic outcomes. The only way to find out is to “open the box”, in other words collapse the wave-function of an uncertain date into a specific outcome. Also, in the episode "The Russian Rocket Reaction" (Oct 13, 2011), Sheldon characterizes his relationship to Leonard as "Schrödinger's friendship", in the sense that Leonard is simultaneously his friend and mortal enemy (as he may or may not attend Will Wheaton's party). When Sheldon tries to explain the paradox to Penny, she gives an approximate description: "[...] there's this cat in a box and until you open it, it's either dead or alive or both [...]".
  • In the Defying Gravity
    Defying Gravity (TV series)
    Defying Gravity is a multi-nationally produced space travel television science fiction drama series, first aired on August 2, 2009 on ABC and CTV and canceled in the autumn of 2009...

    episode,"Love, Honor, Obey" (2009), the astronauts lose all communications with mission control while in a protective shelter during a solar flare. Steve Wassenfelder, the ship's theoretical physicist, describes their situation as akin to Schrödinger's cat, for mission control does not know if the astronauts are alive or dead until communication can be reestablished.
  • In Season 1, episode 6 of FlashForward
    Flashforward
    A flashforward is an interjected scene that takes the narrative forward in time from the current point of the story in literature, film, television and other media. Flashforwards are often used to represent events expected, projected, or imagined to occur in the future...

    , "Scary Monsters and Super Creeps" (2009), Simon references Schrödinger's Cat as he is trying to explain why the blackouts happened. He describes it using the metaphor of holding a tiny cat in a closed hand with a poisoned sardine. If the cat eats the sardine, he will die; if not, he will live. But the outcome will be unknown until the hand is opened. Until then, the cat may be both alive and dead simultaneously
    Quantum superposition
    Quantum superposition is a fundamental principle of quantum mechanics. It holds that a physical system exists in all its particular, theoretically possible states simultaneously; but, when measured, it gives a result corresponding to only one of the possible configurations.Mathematically, it...

    , with reality ultimately being decided upon the intrusion of an observer
    Observer effect (physics)
    In physics, the term observer effect refers to changes that the act of observation will make on the phenomenon being observed. This is often the result of instruments that, by necessity, alter the state of what they measure in some manner...

    .
  • In the visual novel
    Visual novel
    A is an interactive fiction game featuring mostly static graphics, usually with anime-style art, or occasionally live-action stills or video footage...

     Umineko no Naku Koro ni
    Umineko no Naku Koro ni
    is a Japanese murder mystery dōjin soft visual novel series produced by 07th Expansion. The first game in the series, Legend of the Golden Witch, was first released at Comiket 72 on August 17, 2007 playable on the PC; the game sold out in thirty minutes...

    , episode 3, the main character Battler uses Schrödinger's Cat in his battle against the witch Beatrice to deny the existence of magic.
  • Charlie Brooker
    Charlie Brooker
    Charlton "Charlie" Brooker is a British journalist, comic writer and broadcaster. His style of humour is savage and profane, with surreal elements and a consistent satirical pessimism...

    , on his program Newswipe (2009), refers to the media coverage of Jade Goody's death as paradoxical in the same way that Schrödinger's cat is. He shows a visual metaphor using a stuffed cat to explain, then comments,"But that's the Copenhagen Interpretation of quantum mechanics for you."
  • Nearly a third of an episode of the series, Sayonara, Zetsubou-Sensei is devoted to Schrödinger's cat, referencing it in the way that there are infinite possibilities for anything in a box. Examples include Schrödinger's lunch box (Which may or may not have mold), Schrödinger's boxed-wives (Which could all possibly be ideal), and refusing to face reality (by boxing things with possibly bad outcomes).
  • In the 2007 anime, Tengen Toppa Gurren-Lagann, Lordgenome claims that the Anti-Spirals are able to use something called a Schrödinger Warp, meaning they are everywhere and nowhere at the same time, but nobody knows where they are until they appear within regular Space-Time.
  • The Futurama
    Futurama
    Futurama is an American animated science fiction sitcom created by Matt Groening and developed by Groening and David X. Cohen for the Fox Broadcasting Company. The series follows the adventures of a late 20th-century New York City pizza delivery boy, Philip J...

    episode, "Law and Oracle
    Law and Oracle
    "Law and Oracle" is an episode of the animated sitcom Futurama. It aired on Comedy Central in the United States on July 7, 2011 as the sixteenth episode of the show's sixth season....

    " (2011), features an extended car chase scene in which Police Officer Fry apprehends Erwin Schrödinger, who is transporting a box containing "a cat, some poison und a cesium atom." When asked if the cat is alive or dead, Schrödinger responds that "it is a superposition of both states, until you open it and collapse the wave-function." Upon opening the box, Fry finds a living cat, who attacks him, while his partner discovers "there's also a lot of drugs in there." It is later revealed that the cat has agreed to testify against Schrödinger.
  • In one episode in the Big Bang Theory, Sheldon claims that until Leonard is observed either going or not going to Will Wheaton's party, he should be simultaenously his friend and not his friend. He classifies this as "Schrödinger's friendship".
  • In the 2011 anime, "Mawaru Penguindrum", Schrödinger's Cat is openly referenced.
  • In Hellsing
    Hellsing
    is a Japanese manga series written and illustrated by Kouta Hirano. It first premiered in Young King Ours in 1997 and ended in September 2008. The individual chapters are collected and published in tankōbon volumes by Shōnen Gahosha. As of March 2009 all chapters have been released in 10 volumes in...

     Schrodinger is a werewolf character that embodies the elements of the Schrodinger's cat principle in that he can be alive and/or dead, but it is more accurate to refer to his abilities as omnipresence, as so long as he knows himself he can be both anywhere and nowhere. This was established when Alucard blew Schrodinger's head off with his gun, only to find out moments later that he was already back at Major's command chair.

Film

  • In Schrödingerskatze (2011), a short-film written, produced and directed by Jupiter de la Bâtardise, the plot is entirely based on this principle.
  • In A Serious Man
    A Serious Man
    A Serious Man is a 2009 dark comedy written, produced, and directed by Joel and Ethan Coen. The film stars Michael Stuhlbarg as a Minnesota Jewish man whose life crumbles both professionally and personally, leading to questions about his faith...

    (2009), written by the Coen Brothers
    Coen Brothers
    Joel David Coen and Ethan Jesse Coen known together professionally as the Coen brothers, are American filmmakers...

    , protagonist Larry Gopnik mentions Schrödinger's Cat in a discussion about the unpredictability of future events.
  • In Repo Men (2010), Jude Law
    Jude Law
    David Jude Heyworth Law , known professionally as Jude Law, is an English actor, film producer and director.He began acting with the National Youth Music Theatre in 1987, and had his first television role in 1989...

    's character mentions the Schrödinger's cat example in the beginning of the movie.

Video games

  • In Digital Devil Saga, a game produced by Atlus
    Atlus
    is a Japanese computer and video game developer, publisher, and distributor based in Tokyo, Japan, best known for developing the console role-playing game franchise Megami Tensei. The first Megami Tensei was a Nintendo Entertainment System video game published by Namco based on a trilogy of...

    , there is an enigmatic cat-like creature revealed to have some connection to God, whom the main character can see throughout the games. His name is 'Schrodinger'.
  • In Wild Arms 3
    Wild Arms 3
    Wild Arms 3, known in Japan as , is a role-playing game developed by Media.Vision and published by Sony Computer Entertainment and the sequel to Wild Arms and Wild Arms 2. It was released in 2002 on the Sony PlayStation 2 video game console....

    , the character of Shady the Cat, owned by a Maya Schrödinger, is based on Schrödinger's cat, and is claustrophobic as a result of the "experiment."
  • In NetHack
    NetHack
    NetHack is a single-player roguelike video game originally released in 1987. It is a descendant of an earlier game called Hack , which is a descendant of Rogue...

    , one of the monsters encountered in this roguelike game is called 'Quantum Mechanic', which often carries a chest. The chest either contains a cat corpse, or causes a cat to appear. Reading the source code to the game also reveals that the game does not determine the state of the cat until the chest is opened.
  • In pop'n music
    Pop'n Music
    , commonly abbreviated as Pop'n, PM or PNM, is a music video game in the Bemani series made by the Konami Corporation. This game is known for its bright colors, upbeat songs, and cartoon character graphics...

    , a song titled Schrödinger's Cat was composed by Tomosuke Funaki
    Tomosuke Funaki
    is a Japanese composer who has contributed to the Bemani series of music video games. He has produced songs for Beatmania, Beatmania IIDX, Pop'n Music, Dance Maniax, Guitar Freaks, DrumMania, Mambo a Gogo, and Dance Dance Revolution...

     for the arcade version of Pop'n Music
    Pop'n Music
    , commonly abbreviated as Pop'n, PM or PNM, is a music video game in the Bemani series made by the Konami Corporation. This game is known for its bright colors, upbeat songs, and cartoon character graphics...

     16 PARTY. It is accredited to being the first 43 in any arcade pop'n music game, the highest difficulty level in the series.
  • In Rock Band
    Rock Band
    Rock Band is a music video game developed by Harmonix Music Systems, published by MTV Games and Electronic Arts. It is the first title in the Rock Band series. The PlayStation 3 and Xbox 360 versions were released in the United States on November 20, 2007, while the PlayStation 2 version was...

    , a daily battle of the bands was entitled Schrödinger's Cat. It featured the songs "Alive" by Pearl Jam
    Pearl Jam
    Pearl Jam is an American rock band that formed in Seattle, Washington, in 1990. Since its inception, the band's line-up has included Eddie Vedder , Jeff Ament , Stone Gossard , and Mike McCready...

    , "Dead" by The Pixies and "Wanted Dead or Alive
    Wanted Dead or Alive (Bon Jovi song)
    -Music Video:The video for the song is black and white and features footage from the band's massive 1986-1987 world tour, including shots from Chicago's UIC Pavilion, Rochester, Minnesota's Mayo Civic Center, Denver, Colorado's McNichols Arena, Pittsburgh, PA F. Pitt Tunnel and Pittsburgh Skyline...

    " by Bon Jovi
    Bon Jovi
    Bon Jovi is an American rock band from Sayreville, New Jersey. Formed in 1983, Bon Jovi consists of lead singer and namesake Jon Bon Jovi , guitarist Richie Sambora, keyboardist David Bryan, drummer Tico Torres, as well as current bassist Hugh McDonald...

    .
  • In Gundeadligne, the first stage is "Le chat noir de Schrödinger - Schrödinger's Black Cat", This stage's boss is called "Chatnoir", whose appearance is that of a Cat girl (nekomimi). http://www.youtube.com/watch?v=QrGamiONv2o
  • In Elements the Game, Schrodinger's Cat is an Entropy creature that has an ability Dead and Alive. This activates death effects without killing the cat.
  • In the publicity web-comic for the Valve
    Valve
    A valve is a device that regulates, directs or controls the flow of a fluid by opening, closing, or partially obstructing various passageways. Valves are technically pipe fittings, but are usually discussed as a separate category...

     game Portal 2
    Portal 2
    Portal 2 is a first-person puzzle-platform video game developed and published by Valve Corporation. The sequel to the 2007 video game Portal, it was announced on March 5, 2010, following a week-long alternate reality game based on new patches to the original game...

     the fate of the protagonist Chell is a reference to Schrodinger's Cat. Also GLaDOS mentions a "bring your cat to work day" and that she has the boxes and the neurotoxins (poison) and just needs the cats. There is also an achievement called Schrodinger's Catch in which the player catches a blue box before it touches the ground. There is also the Fact Core that claims that Schrödinger's cat was created just so that he "could justify killing cats".
  • In BlazBlue: Continuum Shift
    BlazBlue: Continuum Shift
    is a 2-D fighting game developed by Arc System Works. The game is the official sequel to BlazBlue: Calamity Trigger. As with the previous game, BlazBlue: Continuum Shift first came to arcades before both the Xbox 360 and PlayStation 3 versions as the game was currently released for the Taito Type...

    , after a fight between Tager and Lambda-11, during Tager's storyline, Kokonoe references Lambda-11 and Tager being similar to two Schrödinger's Cats.
  • In Bioshock 2
    BioShock 2
    BioShock 2 is a first-person shooter video game developed by 2K Marin for Microsoft Windows, PlayStation 3 and Xbox 360. The sequel to the 2007 video game BioShock, it was released worldwide on February 9, 2010....

    , Hidden within a mass of ice, there is a deceased cat, upon melting the ice and closely examining it the display reads Schrödinger.

Web comics

  • One of the earlist xkcd
    Xkcd
    xkcd is a webcomic created by Randall Munroe. The comic's tagline describes it as "a webcomic of romance, sarcasm, math, and language." It has been recognized in such mainstream media as The Guardian and The New York Times....

     strips, titled "Schrodinger," is based on Schrödinger's paradox
    Schrödinger's cat
    Schrödinger's cat is a thought experiment, usually described as a paradox, devised by Austrian physicist Erwin Schrödinger in 1935. It illustrates what he saw as the problem of the Copenhagen interpretation of quantum mechanics applied to everyday objects. The scenario presents a cat that might be...

  • Dresden Codak
    Dresden Codak
    Dresden Codak is a webcomic written and illustrated by Aaron Diaz. Described by Diaz as a "celebration of science, death and human folly", the comic presents stories that deal with elements of philosophy, science and technology, and/or psychology...

     features a Schrödinger strip
  • LukeSurl.com features a Charles Dickens
    Charles Dickens
    Charles John Huffam Dickens was an English novelist, generally considered the greatest of the Victorian period. Dickens enjoyed a wider popularity and fame than had any previous author during his lifetime, and he remains popular, having been responsible for some of English literature's most iconic...

     and Schrödinger strip
  • Cyanide and Happiness
    Cyanide and Happiness
    Cyanide and Happiness is a webcomic hosted on Explosm.net and written by four authors with occasional contributions from guests. It was founded on December 9th 2004 and has hosted almost daily comics since January 26th 2005...

     features a "90% of the General Public Won't Understand Week", Strip with a reference to Schrödinger and his cat
    Schrödinger's cat
    Schrödinger's cat is a thought experiment, usually described as a paradox, devised by Austrian physicist Erwin Schrödinger in 1935. It illustrates what he saw as the problem of the Copenhagen interpretation of quantum mechanics applied to everyday objects. The scenario presents a cat that might be...

  • The website Abstruse Goose features a series of comics "Schrödinger’s Miscalculation"
  • The Order of the Stick
    The Order of the Stick
    The Order of the Stick is a comedic webcomic that celebrates and satirizes tabletop role-playing games and medieval fantasy through the ongoing tale of the eponymous fellowship of adventuring heroes...

     features a strip about "Schrödinger's Ninjas" in its first book.
  • Questionable Content
    Questionable Content
    Questionable Content is a slice-of-life webcomic written and drawn by Jeph Jacques. It was launched on August 1, 2003. Jacques currently makes his living exclusively from QC merchandising and advertising, making him one of the few professional webcomic artists...

     mentions Schrödinger's cat in its own absurd extrapolation from the Copenhagen interpretation
    Copenhagen interpretation
    The Copenhagen interpretation is one of the earliest and most commonly taught interpretations of quantum mechanics. It holds that quantum mechanics does not yield a description of an objective reality but deals only with probabilities of observing, or measuring, various aspects of energy quanta,...

  • Zach Weiner
    Zach Weiner
    Zachary 'Zach' Alexander Weinersmith , is the author and illustrator of the webcomic Saturday Morning Breakfast Cereal , currently residing in California...

    's Saturday Morning Breakfast Cereal
    Saturday Morning Breakfast Cereal
    Saturday Morning Breakfast Cereal is a humorous webcomic by Zach Weiner. SMBC is "at heart a geek comic, but it nevertheless addresses a broad range of topics, such as love, relationships, economics, politics, religion, science, and philosophy." It has been featured on a variety of websites and...

     features a one panel misunderstanding Schrödinger's Cat
  • Patrick Connelly's Schrödinger features comics around Schrödinger the cat
  • MS Paint Adventures
    MS Paint Adventures
    MS Paint Adventures is a collection of webcomics written and illustrated by Andrew Hussie. Because of the frequency with which the site is updated, MS Paint Adventures is estimated to be the longest web comic on the Internet with over 6000 pages total among its four series.These comics are written...

    , in an extra from the Problem Sleuth adventure, the Midnight Crew used Schrödinger's cat to deal with a meddlesome wasp. The fate of Nepeta Leijon of Homestuck also references Schrödinger's cat.
  • In Irregular Webcomic, the MythBusters test the Copenhagen interpretation by conducting the thought experiment in practice in these strips.
  • Laika & Qubit is a weekly web comic featuring soviet space dog, Laika
    Laika
    Laika was a Soviet space dog that became the first animal to orbit the Earth – as well as the first animal to die in orbit.As little was known about the impact of spaceflight on living creatures at the time of Laika's mission, and the technology to de-orbit had not yet been developed, there...

    , and Schrödinger's cat, Qubit, on a surreal adventure by Paul K. Tunis.

Music

  • Eyedea
    Eyedea
    Micheal Larsen , known by his stage name Eyedea, was a well-known freestyle battle champion and underground rapper. His notable wins included the televised Blaze Battle sponsored by HBO and a victory at Scribble Jam...

    : On the "Infrared Roses" track from his 2001 CD, The Many Faces of Oliver Hart
    The Many Faces of Oliver Hart
    The Many Faces of Oliver Hart or How Eye One the Write Too Think is an album recorded and entirely produced by Eyedea, released under the pseudonym Oliver Hart.-Track listing:#"The Many Faces of Oliver Hart"#"Weird Side"#"Song About a Song"...

    , Eyedea proclaims, "The curiosity that killed Schrödinger's cat was the only thing that kept it alive, matter of fact".
  • Mark Rosengarten: On his 2007 CD, Schrodinger's Cat Strikes Back, this high-school chemistry teacher performs a song that humorously depicts Schrödinger's Cat getting her revenge for such a diabolical idea.
  • Tears for Fears
    Tears for Fears
    Tears for Fears are an English new wave band formed in the early 1980s by Roland Orzabal and Curt Smith.Founded after the dissolution of their first band, the mod-influenced Graduate, they were initially associated with the New Wave synthesiser bands of the early 1980s but later branched out into...

    : The track titled, "Schrodinger's Cat", is featured as a B-side on Tears for Fears' single, "Break It Down Again
    Break It Down Again
    "Break It Down Again" is a song by the British band Tears For Fears, released as the first single from their 1993 album Elemental. The song was an international hit, reaching #20 in the UK, #25 in the US, and the Top 40 in several other countries, and also reached #1 on the US Billboard Modern...

    ".
  • The Ghost Of A Saber Tooth Tiger: Sean Lennon (son of John) and Charlotte Kemp Muhl released a song entitled "Schroedinger's Cat" on their 2010 album "Acoustic Sessions." The lyrics apply principals from quantum mechanics to relationships with the line, "Can't be sure that I exist when you are not around."
  • The song Love and Hatred
    Ethernaut
    Ethernaut is a 2003 album by The Crüxshadows.According to Rogue, the songs on Ethernaut are meant to be an allegory for the fall of Troy . Rogue believes the Trojans to be the "good guys" of the story, and wrote Ethernaut to tell the story from the Trojan side, with a focus on the emotions of the...

     by The Crüxshadows
    The Crüxshadows
    The Crüxshadows is an Dark Electro group from Florida. Their sound is made up of a combination of male vocals, electric violin, guitar, and synth...

     features the lyrics, "Can you hear the cat within the box, can you hear electrons moving free, watching something, watching nothing, in status somewhere in between..."
  • Ukrainian underground metal-band Code Veronica released a song entitled "Shroedinger's Cat (feat. x_Remytia_x)" on their 2009 album "Теорія струн".

Merchandise

  • The ecommerce website ThinkGeek
    ThinkGeek
    ThinkGeek is an American online retailer that caters to computer enthusiasts and other "geeky" social groups. Their merchandise includes clothing, electronic and scientific gadgets, unusual computer peripherals, office toys, pet toys, child toys, and caffeinated drinks and candy...

     sells a t-shirt
    T-shirt
    A T-shirt is a style of shirt. A T-shirt is buttonless and collarless, with short sleeves and frequently a round neck line....

     based on the Schrödinger's cat experiment. One side of the shirt reads, "Schrödinger's cat is dead." The other side reads, "Schrödinger's cat is not dead." This parodies the concept of the cat being both dead and alive.
  • The website [ Shirt.Woot!] offered a psychedelic t-shirt based on the infamous cat.
  • The website SnorgTees sells a shirt displaying a wanted poster that reads: "Schrodinger's Cat: Wanted Dead & Alive."

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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