Gibbs measure, often used in statistical mechanics and probability theory, is a type of probability measure that describes the distribution of states of a system in thermal equilibrium. It is named after the American physicist Josiah Willard Gibbs, who contributed significantly to statistical thermodynamics. In a Gibbs measure, the probability of a particular state (or configuration) of a system is determined by the energy of that state, as well as the temperature of the system.
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