In physics, statistical mechanics is a mathematical framework that applies statistical methods and probability theory to large assemblies of microscopic entities. Sometimes called statistical physics or statistical thermodynamics, its applications include many problems in the fields of physics, biology, chemistry, neuroscience, computer science, information theory and sociology. Its main purpose is to clarify the properties of matter in aggregate, in terms of physical laws governing atomic motion.
In condensed matter physics, a spin glass is a magnetic state characterized by randomness, besides cooperative behavior in freezing of spins at a temperature called "freezing temperature" Tf. In ferromagnetic solids, component atoms' magnetic spins all align in the same direction. Spin glass when contrasted with a ferromagnet is defined as "disordered" magnetic state in which spins are aligned randomly or without a regular pattern and the couplings too are random.
Supersymmetry is a theoretical framework in physics that suggests the existence of a symmetry between particles with integer spin (bosons) and particles with half-integer spin (fermions). It proposes that for every known particle, there exists a partner particle with different spin properties. There have been multiple experiments on supersymmetry that have failed to provide evidence that it exists in nature. If evidence is found, supersymmetry could help explain certain phenomena, such as the nature of dark matter and the hierarchy problem in particle physics.
Yang Chen-Ning or Chen-Ning Yang, also known as C. N. Yang or by the English name Frank Yang, is a Chinese theoretical physicist who made significant contributions to statistical mechanics, integrable systems, gauge theory, and both particle physics and condensed matter physics. He and Tsung-Dao Lee received the 1957 Nobel Prize in Physics for their work on parity non-conservation of weak interaction. The two proposed that one of the basic quantum-mechanics laws, the conservation of parity, is violated in the so-called weak nuclear reactions, those nuclear processes that result in the emission of beta or alpha particles. Yang is also well known for his collaboration with Robert Mills in developing non-abelian gauge theory, widely known as the Yang–Mills theory.
Ennackal Chandy George Sudarshan was an Indian American theoretical physicist and a professor at the University of Texas. Prof.Sudarshan has been credited with numerous contributions to the field of theoretical physics, including Glauber–Sudarshan P representation, V-A theory, tachyons, quantum Zeno effect, open quantum system and quantum master equations, spin–statistics theorem, non-invariance groups, positive maps of density matrices, and quantum computation.
Sir Samuel Frederick Edwards was a Welsh physicist. The Sam Edwards Medal and Prize is named in his honour.
Nikolay Nikolayevich Bogolyubov, also transliterated as Bogoliubov and Bogolubov, was a Soviet and Russian mathematician and theoretical physicist known for a significant contribution to quantum field theory, classical and quantum statistical mechanics, and the theory of dynamical systems; he was the recipient of the 1992 Dirac Medal.
Mehran Kardar is an Iranian born physicist and professor of physics at the Massachusetts Institute of Technology (MIT), and co-faculty at the New England Complex Systems Institute (USA). He received his B.A. in physics from the University of Cambridge in 1979, and obtained his Ph.D. from MIT in 1983. Kardar is particularly known for the Kardar–Parisi–Zhang (KPZ) equation in theoretical physics, which has been named after him and his two coauthors: the Nobel Prize laureate Giorgio Parisi, and Yi-Cheng Zhang. He was awarded a Guggenheim Fellowship in 2001.
V. Balakrishnan is an Indian theoretical physicist, who has worked in a number of fields and areas, including particle physics, many-body theory, the mechanical behavior of solids, dynamical systems, stochastic processes, and quantum dynamics. He is an accomplished researcher who has made important contributions to the theory of anelasticity, continuous-time random walks, and recurrences in dynamical systems.
Alexander Leonidovich Kuzemsky is a Russian theoretical physicist.
Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain and predict natural phenomena. This is in contrast to experimental physics, which uses experimental tools to probe these phenomena.
The timeline of quantum mechanics is a list of key events in the history of quantum mechanics, quantum field theories and quantum chemistry.
In mathematics, the Kardar–Parisi–Zhang (KPZ) equation is a non-linear stochastic partial differential equation, introduced by Mehran Kardar, Giorgio Parisi, and Yi-Cheng Zhang in 1986. It describes the temporal change of a height field with spatial coordinate and time coordinate :
In theoretical physics, stochastic quantization is a method for modelling quantum mechanics, introduced by Edward Nelson in 1966, and streamlined by Parisi and Wu.
Guido Altarelli was an Italian theoretical physicist.
Maciej Lewenstein, is a Polish theoretical physicist, currently an ICREA professor at ICFO – The Institute of Photonic Sciences in Castelldefels near Barcelona. He is an author of over 480 scientific articles and 2 books, and recipient of many international and national prizes. In addition to quantum physics his other passion is music, and jazz in particular. His collection of compact discs and vinyl records includes over 9000 items.
Narendra Kumar was an Indian theoretical physicist and a Homi Bhaba Distinguished Professor of the Department of Atomic Energy at Raman Research Institute. He was also an honorary professor at Jawaharlal Nehru Centre for Advanced Scientific Research.
Francesco Guerra is an Italian mathematical physicist, whose main research contributions are in quantum field theory and spin glasses.
David Sherrington is a British theoretical physicist and Wykeham Professor of Physics Emeritus at the University of Oxford. He is known for his work in condensed matter and statistical physics, and particularly for the invention of the Sherrington-Kirkpatrick model, an exactly solvable mean-field model of a spin glass.
Florent Krzakala is a French physicist and applied mathematician, currently a professor at EPFL. His research focuses on the resolution of theoretical problems in physics, computer science, machine learning, statistics and signal processing using mathematical tools inspired by the field of statistical physics.
