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Fluctuations in nonequilibrium systems and broken supersymmetry (1993)

Zimmer, Michael F.

Springer

Journal of statistical physics 73 (1993), S. 751-764

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ISSN: 1572-9613

Schlagwort(e): Fluctuation-dissipation theorem ; nonequilibrium systems ; supersymmetry ; Ward-Takahashii identity ; detailed balance ; driven diffusive system ; nonpotential forces ; BRS symmetry ; mode coupling

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: 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.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01054348

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