Gibbs ensemble

E284681

The Gibbs ensemble is a statistical physics framework that describes the probabilistic distribution of microstates for systems in thermal equilibrium, typically at fixed temperature, volume, and particle number.

All labels observed (4)

Label Occurrences
Gibbs ensemble canonical 1
Gibbs ensemble in statistical mechanics 1
Gibbs ensembles 1

How this entity was disambiguated

Statements (30)

Predicate Object
instanceOf concept in statistical mechanics
statistical ensemble
appliesTo systems in thermal equilibrium
assumes ergodic hypothesis
large number of degrees of freedom
basedOn Boltzmann distribution
surface form: Boltzmann factor
characterizedBy fixed particle number
fixed temperature
fixed volume
contrastsWith non-equilibrium ensembles
describes probabilistic distribution of microstates
field statistical mechanics
thermodynamics
formalizedBy Josiah Willard Gibbs
hasKeyQuantity partition function
mathematicallyFormulatedAs probability measure on phase space
namedAfter Josiah Willard Gibbs
probabilityWeight exponential of minus energy over k_B T
provides link between microscopic dynamics and macroscopic thermodynamics
relatedTo canonical ensemble
grand canonical ensemble
microcanonical ensemble
requires definition of Hamiltonian of the system
underlies canonical distribution
grand canonical distribution
usedFor calculating expectation values of observables
deriving thermodynamic properties from microscopic states
usedIn chemical physics
equilibrium statistical mechanics
theoretical physics

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

statistical physics usesConcept Gibbs ensemble
Josiah Willard Gibbs knownFor Gibbs ensemble
this entity surface form: Gibbs ensemble in statistical mechanics
Josiah Willard Gibbs notableConcept Gibbs ensemble
this entity surface form: grand canonical ensemble
The Principles of Statistical Mechanics subject Gibbs ensemble
this entity surface form: Gibbs ensembles