Supersymmetry approach in the field theory of ergodicity breaking transitions

Details Supersymmetry approach in the field theory of ergodicity breaking transitions Supersymmetry approach in the field theory of ergodicity breaking transitions

1999-09-27

arxiv.org/abs/cond-mat/9909387v2

Physica A285 (2000) 413-432

Physics

Condensed Matter

Statistical Mechanics

20 pages, 3 figures, LaTeX2e, uses feynmf.sty

Scientific paper

10.1016/S0378-4371(00)00248-X

The supersymmetry self-consistent approximation for the model of non-equilibrium thermodynamic system with quenched disorder is derived from the dynamical action calculated by means of generalized second Legendre transformation. The equations for adiabatic and isothermal susceptibilities, memory and field induced parameters are obtained on the basis of asymptotic analysis of dynamical Dyson equations. It is shown that the marginal stability condition that defines the critical point is governed by fluctuations violating FDT. The temperature of ergodicity breaking transition is calculated as a function of quenched disorder intensities. Transformation of superfields related to the mapping between an instanton process and the corresponding causal solution is discussed.

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