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Statistical mechanics

Boltzmann distribution
Probability distribution of energy states of a system
Bose–Einstein statistics
Description of the behaviour of bosons
Canonical ensemble
Ensemble of possible states of a mechanical system at a fixed temperature
Density of states
Describes the number of states per interval of energy at each energy level available to be occupied in a system
Distribution function (physics)
Function of position and velocity which gives the number of particles per unit volume in single-particle phase space
Entropy (statistical thermodynamics)
Entropy in statistics
Fermi energy
Concept in quantum mechanics referring to the energy difference between the highest and lowest occupied single-particle states in a quantum system of non-interacting fermions at absolute zero temperature
Fermi–Dirac statistics
Statistical description for the behavior of fermions
Grand canonical ensemble
Statistical ensemble of particles in thermodynamic equilibrium
Indistinguishable particles
Concept in quantum mechanics of perfectly substitutable particles
Maxwell–Boltzmann distribution
Specific probability distribution function, important in physics
Maxwell–Boltzmann statistics
Statistical distribution used in many-particle mechanics
Maxwell's demon
Thought experiment of 1867
Microcanonical ensemble
Ensemble of states with an exactly specified total energy
Microstate (statistical mechanics)
Specific microscopic configuration of a thermodynamic system
Molecular diffusion
The thermal motion of liquid or gas particles at temperatures above absolute zero
Particle statistics
Particular description of multiple particles in statistical mechanics
Partition function (statistical mechanics)
Function in thermodynamics and statistical physics
Statistical mechanics
Physics of large number of particles' statistical behavior
Work (thermodynamics)
Form of energy defined in the first law of thermodynamics