Relaxation (physics)
Return of a perturbed system into equilibrium / From Wikipedia, the free encyclopedia
In the physical sciences, relaxation usually means the return of a perturbed system into equilibrium. Each relaxation process can be categorized by a relaxation time τ. The simplest theoretical description of relaxation as function of time t is an exponential law exp(−t/τ) (exponential decay).
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"Characteristic time" redirects here. Not to be confused with Time constant.