A Gibbs state in probability theory and statistical mechanics is an equilibrium probability distribution which remains invariant under future evolution of the system (for example, a stationary or steady-state distribution of a Markov chain, such as that achieved by running a Markov chain Monte Carlo iteration for a sufficiently long time). Probability theory is the branch of Mathematics concerned with analysis of random phenomena Statistical mechanics is the application of Probability theory, which includes mathematical tools for dealing with large populations to the field of Mechanics In Mathematics, a Markov chain, named after Andrey Markov, is a Stochastic process with the Markov property.
In physics there may be several physically distinct Gibbs states in which a system may be trapped, particularly at lower temperatures. Physics (Greek Physis - φύσις in everyday terms is the Science of Matter and its motion.
They are named after J. Willard Gibbs, for his work in determining equilibrium properties of statistical ensembles. Josiah Willard Gibbs ( February 11, 1839 &ndash April 28, 1903) was an American theoretical Physicist, Chemist In Mathematical physics, especially as introduced into Statistical mechanics and Thermodynamics by J