The TAP-Plefka variational principle for the spherical SK model
arXiv:1802.05782 · doi:10.1007/s00220-019-03304-y
Abstract
We reinterpret the Thouless-Anderson-Palmer approach to mean field spin glass models as a variational principle in the spirit of the Gibbs variational principle and the Bragg-Williams approximation. We prove this TAP-Plefka variational principle rigorously in the case of the spherical Sherrington-Kirkpatrick model.