noun
ergodic hypothesis
A concept in statistical mechanics stating that over long periods of time, the time spent by a system in some region of the phase space of microstates with the same energy is proportional to the volume of this region.
エルゴード仮説は統計力学の基礎の一つです。
The ergodic hypothesis is one of the foundations of statistical mechanics.
From English 'ergodic' + 仮説 (hypothesis). The term 'ergodic' was coined by Ludwig Boltzmann from Greek 'ergon' (work) and 'hodos' (path).