In statistical physics, frenesy is a measure of the dynamical activity of a system's microscopic trajectories under non-equilibrium conditions. Frenesy complements the notion of entropy production (which measures time-antisymmetric aspects associated with irreversibility), and represents how frequently states are visited or how many transitions occur over time, as well as how busy the system's trajectories are.
In statistical physics, frenesy is a measure of the dynamical activity of a system's microscopic trajectories under non-equilibrium conditions. Frenesy complements the notion of entropy production (which measures time-antisymmetric aspects associated with irreversibility), and represents how frequently states are visited or how many transitions occur over time, as well as how busy the system's trajectories are.
Source: Wikipedia "Frenesy (physics)" · CC BY-SA 4.0
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