Scaling and Renormalization Group in Replica Symmetry Breaking space: Evidence for a simple analytical solution of the SK model at zero temperature

Abstract

Using numerical self-consistent solutions of a sequence of finite replica symmetry breakings (RSB) and Wilson's renormalization group but with the number of RSB-steps playing a role of decimation scales, we report evidence for a non-trivial T->0-limit of the Parisi order function q(x) for the SK spin glass. Supported by scaling in RSB-space, the fixed point order function is conjectured to be q*(a)=sqrt{π/2} a/ξerf(ξ/a) on 0\leq a\leq infty where x/T->a at T=0 and ξ\approx 1.13\pm 0.01. ξplays the role of a correlation length in a-space. q*(a) may be viewed as the solution of an effective 1D field theory.

arXiv comment4 pages, 6 Figures, accepted for publication in Physical Review Letters

References in corpus (3)

• Analysis of the infinity-replica symmetry breaking solution of the Sherrington-Kirkpatrick model
• Magnetic Gaps related to Spin Glass Order in Fermionic Systems
• Fermionic SK-models with Hubbard interaction: Magnetism and electronic structure

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