English

The extremal process of critical points of the pure $p$-spin spherical spin glass model

Probability 2016-06-07 v2

Abstract

Recently, sharp results concerning the critical points of the Hamiltonian of the pp-spin spherical spin glass model have been obtained by means of moments computations. In particular, these moments computations allow for the evaluation of the leading term of the ground-state, i.e., of the global minimum. In this paper, we study the extremal point process of critical points - that is, the point process associated to all critical values in the vicinity of the ground-state. We show that the latter converges in distribution to a Poisson point process of exponential intensity. In particular, we identify the correct centering of the ground-state and prove the convergence in distribution of the centered minimum to a (minus) Gumbel variable. These results are identical to what one obtains for a sequence of i.i.d variables, correctly normalized; namely, we show that the model is in the universality class of REM.

Keywords

Cite

@article{arxiv.1509.03098,
  title  = {The extremal process of critical points of the pure $p$-spin spherical spin glass model},
  author = {Eliran Subag and Ofer Zeitouni},
  journal= {arXiv preprint arXiv:1509.03098},
  year   = {2016}
}

Comments

The main results were improved to hold with $p \geq 3$ instead of $\geq 7$