Fluctuations in nonequilibrium systems and broken supersymmetry
Journal Article
·
· Journal of Statistical Physics; (United States)
- Univ. of Illinois, Urbana, IL (United States)
The fluctuation-dissipation theorem is not expected to hold for systems that either violate detailed balance of have time-dependent or nonpotential forces. Therefore, the relation between response and correlation functions should have contributions due to the nonequilibrium nature. An explicit formula for such a contribution is calculated, which in the present derivation appears as a history-dependent term. These relations are the Ward-Takahashi identifies of a supersymmetric formulation of the Langevin models, and the new term results from a broken supersymmetry. 29 refs.
- OSTI ID:
- 7206856
- Journal Information:
- Journal of Statistical Physics; (United States), Journal Name: Journal of Statistical Physics; (United States) Vol. 73:3-4; ISSN JSTPBS; ISSN 0022-4715
- Country of Publication:
- United States
- Language:
- English
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