Transient Fluctuations in the Decay of an Unstable State

Year: 1980

Authors: Arecchi F.T., Politi A.

Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy;
Università di Firenze, Firenze, Italy

Abstract: The decay of an unstable state by the stochastic time of intersection of a given threshold is described. This stochastic parameter is characterized by closed moment equations
exactly soluble, whereas previous approaches, in terms of stochastic amplitudes sampled at a fixed time, led to an open hierarchy of equations requiring approximate solutions.
The relevance of this new description is shown by the fit with the experimental transient fluctuations of an unstable system.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 45 (15)      Pages from: 1219  to: 1222

KeyWords: FLUCTUATION PHENOMENA
DOI: 10.1103/PhysRevLett.45.1219

Citations: 73
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