Singular perturbation near mode-coupling transition

Details Singular perturbation near mode-coupling transition Singular perturbation near mode-coupling transition

2009-02-06

arxiv.org/abs/0902.1010v2

J. Phys. A: Math. Theor. 42 (2009) 245001

Physics

Condensed Matter

Statistical Mechanics

15 pages, 4 figures

Scientific paper

We study the simplest mode-coupling equation which describes the time correlation function of the spherical p-spin glass model. We formulate a systematic perturbation theory near the mode-coupling transition point by introducing multiple time scales. In this formulation, the invariance with respect to the dilatation of time in a late stage yields an arbitrary constant in a leading order expression of the solution. The value of this constant is determined by a solvability condition associated with a linear singular equation for perturbative corrections in the late stage. The solution thus constructed provides exactly the alpha-relaxation time.

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