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arXiv · 1905.00811

Thermodynamics and Many Body Chaos for generalized large q SYK models

Jiaqi Jiang·Zhenbin Yang
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Abstract

This paper considers a type of generalized large $q$ SYK models which include multi-body interactions between Majorana fermions. We derive an effective action in the limit of large $N$ and large $q$ (with ${~q^2\over N} $ small), and find a universal expression for thermodynamical quantities. We also consider the chaos exponent using the retarded kernel method and find an efficient way to calculate the Lyapunov exponent for generalized large $q$ SYK models numerically.

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BibTeXRIS

Jiaqi Jiang, Zhenbin Yang. 2019-05-02. Thermodynamics and Many Body Chaos for generalized large q SYK models. https://doi.org/10.1007/jhep08(2019)019

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