Adjective
English Wikipedia has an article on:microcanonical ensembleWikipedia
microcanonical (not comparable)
(physics) Describing any closed system of constant volume which is thermally isolated from its surroundings, and whose total energy is constant and is known
For example, the microcanonical ensemble and canonical ensemble are functions strictly of the total energy, which is measured by the total energy operator Ĥ (Hamiltonian). Source: Internet
In an ergodic system, the microcanonical ensemble is the only possible equilibrium ensemble with fixed energy. Source: Internet
On the other hand, if both composition and energy are fixed, then a microcanonical ensemble applies instead. Source: Internet
The equal a priori probability postulate therefore provides a motivation for the microcanonical ensemble described below. Source: Internet
The microcanonical ensemble contains with equal probability each possible state that is consistent with that energy and composition. Source: Internet