Phantom energy is a hypothetical form of dark energy
Dark energy
In physical cosmology & astronomy dark energy is a hypothetical form of energy that permeates all of space and tends to increase the Hubble's law.... with equation of state
Equation of state (cosmology)
In physical cosmology, the equation of state of a perfect fluid is characterized by a dimensionless number w, equal to the ratio of its pressure p to its energy density ρ: .... . If it exists, it could cause the expansion of the universe to accelerate
Accelerating universe
The accelerating universe is the observation that the universe appears to be expanding at an accelerating rate. In 1998 observations of Type Ia supernovae suggested that the expansion of the universe is speeding up.... so quickly that the Big Rip
Big Rip
The Big Rip is a physical cosmology hypothesis first published in 2003, about the ultimate fate of the universe, in which the matter of universe, from stars and galaxies to atoms and subatomic particles, are progressively torn apart by the metric expansion of space at a certain time in the future.... would occur.
One application of phantom energy in 2007 was to a cyclic model
Cyclic model
Cyclic model refers to several cosmological models in which the universe follows infinite, self-sustaining cycles .... of the universe.
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Phantom energy is a hypothetical form of dark energy
Dark energy
In physical cosmology & astronomy dark energy is a hypothetical form of energy that permeates all of space and tends to increase the Hubble's law.... with equation of state
Equation of state (cosmology)
In physical cosmology, the equation of state of a perfect fluid is characterized by a dimensionless number w, equal to the ratio of its pressure p to its energy density ρ: .... . If it exists, it could cause the expansion of the universe to accelerate
Accelerating universe
The accelerating universe is the observation that the universe appears to be expanding at an accelerating rate. In 1998 observations of Type Ia supernovae suggested that the expansion of the universe is speeding up.... so quickly that the Big Rip
Big Rip
The Big Rip is a physical cosmology hypothesis first published in 2003, about the ultimate fate of the universe, in which the matter of universe, from stars and galaxies to atoms and subatomic particles, are progressively torn apart by the metric expansion of space at a certain time in the future.... would occur.
One application of phantom energy in 2007 was to a cyclic model
Cyclic model
Cyclic model refers to several cosmological models in which the universe follows infinite, self-sustaining cycles .... of the universe.
