mikrocanonical
Mikrocanonical, or microcanonical, refers to a statistical ensemble used in statistical mechanics to describe an isolated system with fixed energy E, volume V, and particle number N. The term mikrocanonical is sometimes used in non-English literature, but the standard English term is microcanonical; the concept is also called the isolated ensemble.
In classical mechanics, the microcanonical ensemble assigns equal a priori probability to all microstates lying on
Observables are computed as ensemble averages over the microcanonical distribution. For an observable A, the average
Relation to other ensembles: the microcanonical ensemble is the isolated-system counterpart to the canonical (fixed T,