Does the SYK model have a spin glass phase?

Abstract

We argue that the Sachdev-Ye-Kitaev model has no spin glass phase, based on calculations involving both the nearly-conformal limit and the strongly-coupled Schwarzian limit of the model. This conclusion is supported by numerical computations of eigenvalue statistics with up to 46 Majorana fermions. In addition, we find numerically that the distribution of the ground state energy is Gaussian.

24 pages, 8 figures

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• Subsystem Rényi Entropy of Thermal Ensembles for SYK-like models
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• The quantum $p$-spin glass model: A user manual for holographers
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