ISSN:
1572-9613
Keywords:
Fluctuation-dissipation theorem
;
nonequilibrium systems
;
supersymmetry
;
Ward-Takahashii identity
;
detailed balance
;
driven diffusive system
;
nonpotential forces
;
BRS symmetry
;
mode coupling
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The fluctuation-dissipation theorem is not expected to hold for systems that either violate detailed balance or 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 historydependent term. These relations are the Ward-Takahashi identities of a supersymmetric formulation of the Langevin models, and the new term results from a broken supersymmetry.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01054348
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