University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Tuesday, April 5th 2016
4:30 pm:
CM Journal Club in PAN 120
Speaker: Xiaoyu Wang
Subject: Spin glass and replica symmetry breaking

Spin glass is a phenomenon where spins are randomly frozen in space, while having negligible temporal fluctuations. Spin glass occurs typically in disordered systems. In this talk, I will discuss the Sherrington-Kirkpatrick (SK) model of Ising spins, the mean field phase diagram of which can be studied using the replica method. I will explain replica symmetry breaking (RSB) as a definition of spin-glass phase, and discuss the Parisi solution in full detail. I will conclude by discussing the physical implications of the Parisi solution.

Ref: Statistical Physics of Spin Glasses and Information Processing - An Introduction, Hideyoshi Nishimori

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