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The space of microscopic states admitted by a model. A classical microstate is a phase-space point; a quantum ensemble is built from quantum states or a density operator rather than a classical point distribution.
wp-physics-microstatewp-physics-statistical-mechanicstong-statistical-physicsEach relation below ends at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Statistical mechanics specifies a microscopic state space before assigning weights and computing macroscopic quantities.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-physics-microstatewp-physics-statistical-mechanicstong-statistical-physicsEach relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Given selected observables, identify two microstates when all selected macroscopic values agree; the resulting equivalence classes form a precise macrostate quotient. Other coarse-grainings need not be literal quotients.
Identify elements by a stated equivalence relation and equip the quotient with the induced structure. The edge detail must state the representatives and equivalence relation.
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