The Sachdev-Ye-Kitaev model and free Majorana variational states
Statistical Mechanics
2020-06-02 v1
Abstract
Through a mixture of analytic and numerical techniques, we explore the optimal approximation by a free Majorana state to individual disorder realizations of the Sachdev-Ye-Kitaev model, along with a generalization of it. We elucidate the properties of the known time-reversal symmetry breaking phase in the generalized model, finding strong evidence of "spin glass" order. For the Sachdev-Ye-Kitaev model itself, our results are inconclusive but suggest a similar order may be present at zero temperature.
Keywords
Cite
@article{arxiv.2006.00728,
title = {The Sachdev-Ye-Kitaev model and free Majorana variational states},
author = {Daniel Ish and Mark Srednicki},
journal= {arXiv preprint arXiv:2006.00728},
year = {2020}
}
Comments
15 pages, 13 figures