Brosl Hasslacher
Encyclopedia
Brosl Hasslacher was a theoretical physicist
.
Brosl Hasslacher obtained a bachelor's in physics from Harvard University
in 1962. He did his Ph.D. with D.Z. Freeman and C.N. Yang at the State University of New York at Stony Brook
. After having several postdoctoral and research positions at Institute for Advanced Study
in Princeton, New Jersey
, Caltech, ENS in Paris, and CERN, he settled for more than twenty years at the Theoretical Division of the Los Alamos National Laboratory
. There he was involved in theoretical, experimental, and numerical work in theoretical physics, high-energy physics, nonlinear dynamics, fluid dynamics, nanotechnology, and robotics.
In the 1970s, he worked on the extended hadron model, collaborating with A. Neveu.
During the 1980s, Hasslacher pioneered with Uriel Frisch and Yves Pomeau the lattice-gas method for discrete simulation of fluid flow.
As part of the Los Alamos National Laboratory
's Center for Nonlinear Studies, Hasslacher worked with Mitchell Feigenbaum
and contributed ideas to chaos theory
.
In the 1990s, Hasslacher worked with Mark Tilden
on several papers concerning Biomorphic engineering. He is largely credited for using nonlinear dynamics to describe and design Tilden's BEAM robotics
.
In 1994, Brosl Hasslacher Los Alamos National Laboratory
's UNIX account (bhass) was used by hacker Kevin Mitnick
to break into computer security expert Tsutomu Shimomura
's computers.
He retired from Los Alamos National Laboratory
in 2003.
Physics
Physics is a natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.Physics is one of the oldest academic...
.
Brosl Hasslacher obtained a bachelor's in physics from Harvard University
Harvard University
Harvard University is a private Ivy League university located in Cambridge, Massachusetts, United States, established in 1636 by the Massachusetts legislature. Harvard is the oldest institution of higher learning in the United States and the first corporation chartered in the country...
in 1962. He did his Ph.D. with D.Z. Freeman and C.N. Yang at the State University of New York at Stony Brook
State University of New York at Stony Brook
The State University of New York at Stony Brook, also known as Stony Brook University, is a public research university located in Stony Brook, New York, on the North Shore of Long Island, about east of Manhattan....
. After having several postdoctoral and research positions at Institute for Advanced Study
Institute for Advanced Study
The Institute for Advanced Study, located in Princeton, New Jersey, United States, is an independent postgraduate center for theoretical research and intellectual inquiry. It was founded in 1930 by Abraham Flexner...
in Princeton, New Jersey
Princeton, New Jersey
Princeton is a community located in Mercer County, New Jersey, United States. It is best known as the location of Princeton University, which has been sited in the community since 1756...
, Caltech, ENS in Paris, and CERN, he settled for more than twenty years at the Theoretical Division of the Los Alamos National Laboratory
Los Alamos National Laboratory
Los Alamos National Laboratory is a United States Department of Energy national laboratory, managed and operated by Los Alamos National Security , located in Los Alamos, New Mexico...
. There he was involved in theoretical, experimental, and numerical work in theoretical physics, high-energy physics, nonlinear dynamics, fluid dynamics, nanotechnology, and robotics.
In the 1970s, he worked on the extended hadron model, collaborating with A. Neveu.
During the 1980s, Hasslacher pioneered with Uriel Frisch and Yves Pomeau the lattice-gas method for discrete simulation of fluid flow.
As part of the Los Alamos National Laboratory
Los Alamos National Laboratory
Los Alamos National Laboratory is a United States Department of Energy national laboratory, managed and operated by Los Alamos National Security , located in Los Alamos, New Mexico...
's Center for Nonlinear Studies, Hasslacher worked with Mitchell Feigenbaum
Mitchell Feigenbaum
Mitchell Jay Feigenbaum is a mathematical physicist whose pioneering studies in chaos theory led to the discovery of the Feigenbaum constants.- Biography :...
and contributed ideas to chaos theory
Chaos theory
Chaos theory is a field of study in mathematics, with applications in several disciplines including physics, economics, biology, and philosophy. Chaos theory studies the behavior of dynamical systems that are highly sensitive to initial conditions, an effect which is popularly referred to as the...
.
In the 1990s, Hasslacher worked with Mark Tilden
Mark Tilden
Mark W. Tilden is perhaps best known for his invention of BEAM robotics and the WowWee Robosapien humanoid robot. He is a robotics physicist who produces complex robotic movements from simple analog logic circuits, often with discrete electronic components, and usually without a...
on several papers concerning Biomorphic engineering. He is largely credited for using nonlinear dynamics to describe and design Tilden's BEAM robotics
BEAM robotics
The word "beam" in BEAM robotics is an acronym for Biology, Electronics, Aesthetics, and Mechanics. This is a term that refers to a style of robotics...
.
In 1994, Brosl Hasslacher Los Alamos National Laboratory
Los Alamos National Laboratory
Los Alamos National Laboratory is a United States Department of Energy national laboratory, managed and operated by Los Alamos National Security , located in Los Alamos, New Mexico...
's UNIX account (bhass) was used by hacker Kevin Mitnick
Kevin Mitnick
Kevin David Mitnick is a computer security consultant, author, and hacker. In the late 20th century, he was convicted of various computer- and communications-related crimes. At the time of his arrest, he was the most-wanted computer criminal in the United States.-Personal life:Mitnick grew up in...
to break into computer security expert Tsutomu Shimomura
Tsutomu Shimomura
is a Japanese scientist and computer security expert based in the United States, who became an instant celebrity when he, together with computer journalist John Markoff, tracked down and helped the FBI arrest hacker Kevin Mitnick....
's computers.
He retired from Los Alamos National Laboratory
Los Alamos National Laboratory
Los Alamos National Laboratory is a United States Department of Energy national laboratory, managed and operated by Los Alamos National Security , located in Los Alamos, New Mexico...
in 2003.
Notable papers
- B. Hasslacher, A. Neveu, "Dynamic charges in field theories", Nuclear Physics (1979).
- B. Hasslacher, M.J. Perry, "Spin networks are simplicial quantum gravity", Physics Letters (1981).
- U. Frisch, B. Hasslacher, and Y. Pomeau, "Lattice gas Automata for the Navier Stokes Equation"' Phys. Rev. Lett. (1986).
- B. Hasslacher, "Spontaneous curvature in a class of lattice field theories" Physica D(1991).
- B. Hasslacher, M.W. Tilden, "Living machines", Robotics and Autonomous Systems (1995).
- B. Hasslacher, DA Meyer, "Modeling dynamical geometry with lattice gas automata", (1998).
- Dashen, RF; Hasslacher, B; Neveu, "A Particle spectrum in model field theories from semiclassical functional integral techniques" Physical Review D (Particles and Fields); (1975)
- Frisch, U.; d'Humieres, D.; Hasslacher, B.; Lallemand, P.; Pomeau, Y.; Rivet, JP "Lattice gas hydrodynamics in two and three dimensions. " Complex Systems; (1987)
- Dashen, RF; Hasslacher, B; Neveu, A "Semiclassical bound states in an asymptotically free theory" Physical Review D (Particles and Fields); 1975;
- Christ, N.; Hasslacher, B.; Mueller, AH Light-cone behavior of perturbation theory. Physical Review D (Particles and Fields); 15 Dec. 1972; vol.6, no.12, p. 3543-62
- Corrigan, E; Hasslacher, B "Functional-Equation for Exponential Loop Integrals In Gauge Theories" Physics Letters B; 1979; v.81, no.2, p. 181-184
- Feigenbaum, MJ; Hasslacher, B, "Irrational decimations and path integrals for external noise" Physical Review Letters; 30 Aug. 1982; vol.49, no.9, p. 605-9
- Hasslacher, B; Mottola, E Gauge "Field Model of Induced Classical Gravity" Physics Letters B; 1980; v.95, no.2, p. 237-240
- Hasslacher, B; Mottola, E, "Asymptotically Free Quantum-Gravity and Black-Holes" Physics Letters B; 1981; v.99, no.3, p. 221-224
- Hasslacher, B; Perry, MJ, "Spin Networks are Simplicial Quantum-Gravity" Physics Letters B; 1981; v.103, no.1, p. 21-24
- Hasslacher, B.; Kapral, R.; Lawniczak, A., "Molecular Turing structures in the biochemistry of the cell" Chaos; 1993; vol.3, no.1, p. 7-13
- Hasslacher, B.; Sinclair, DK; Cicuta, GM; Sugar, RL "Tower exchange in lambda phi {sup 3} theory" Physical Review Letters; (1970)
- Hasslacher, B.; Sinclair, DK "Feynman-parameter approach to N-tower exchange in phi {sup 3} theory" Physical Review D (Particles and Fields); 15 April 1971; vol.3, no.8, p. 1770–81
- Hasslacher, B.; Hsue, CS; Sinclair, DK "Dual-resonance model implications for two-particle spectra in inclusive reactions" Physical Review D (Particles and Fields); (1971)
- Hasslacher, B; Sinclair, DK, "Problems with currents in the dual-resonance model" Lettere al Nuovo Cimento; 12 Sept. 1970; vol.4, no.11, p. 515-19
- Imholt, TJ; Dyke, CA; Hasslacher, B; Perez, JM; Price, DW; Roberts, JA; Scott, JB; Wadhawan, A; Ye, Z; Tour, JM Nanotubes in Microwave Fields: Light Emission, Intense Heat, Outgassing, and Reconstruction Chemistry of Materials; 21 Oct. 2003; vol.15, no.21, p. 3969-70
- Hasslacher, B; Meyer, DA Modeling dynamical geometry with lattice-gas automata. International Journal of Modern Physics C; Dec. 1998; vol.9, no.8, p. 1597-605 Conference: 7th International Conference on the Discrete Simulation of Fluids, 14–18 July 1998, Oxford, UK
- Hasslacher, B; Meyer, DA Lattice gases and exactly solvable models. Journal of Statistical Physics; Aug. 1992; vol.68, no.3-4, p. 575-90
- Hasslacher, B PARALLEL BILLIARDS AND MONSTER SYSTEMS DAEDALUS; WIN 1992; v.121, no.1, p. 53-65
- HASSLACHER, B; MEYER, DA Knot invariants and cellular automata. Physica D; 2 Sept. 1990; vol.45, no.1-3, p. 328-44
- Hasslacher, B.; Mottola, E. Asymptotically free quantum gravity and black holes. Physics Letters B; 19 Feb. 1981; vol.99B, no.3, p. 221-4
- Hasslacher, B.; Mottola, E. Gauge field model of induced classical gravity. Physics Letters B; 22 Sept. 1980; vol.95B, no.2, p. 237-40
- Dashen, RF; Hasslacher, B.; Neveu, A. Nonperturbative methods and extended-hadron models in field theory. I. Semiclassical functional methods. Physical Review D (Particles and Fields); 15 Dec. 1974; vol.10, no.12, p. 4114-29
- Dashen, RF; Hasslacher, B.; Neveu, A. Nonperturbative methods and extended-hadron models in field theory. II. Two-dimensional models and extended hadrons. Physical Review D (Particles and Fields); 15 Dec. 1974; vol.10, no.12, p. 4130-8
- Dashen, RF; Hasslacher, B.; Neveu, A., Nonperturbative methods and extended-hadron models in field theory. III. Four-dimensional non-Abelian models. Physical Review D (Particles and Fields); 15 Dec. 1974; vol.10, no.12, p. 4138-42