Phase transition and chaos in charged SYK model

Autor:	Nilakash Sorokhaibam
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	AdS-CFT Correspondence Field Theories in Lower Dimensions Holography and condensed matter physics (AdS/CMT) Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Zdroj:	Journal of High Energy Physics, Vol 2020, Iss 7, Pp 1-32 (2020)
Druh dokumentu:	article
ISSN:	1029-8479
DOI:	10.1007/JHEP07(2020)055
Popis:	Abstract We study chaotic-integrable transition and the nature of quantum chaos in SYK model with chemical potential. We use a novel numerical technique to calculate the partition function explicitly. We show the phase transition in the presence of large chemical potential. We also show that a mass-like term consisting of two fermion random interaction (q = 2 SYK term) does not give rise to a sharp transition. We find that turning on the chemical potential suppresses the Lyapunov exponent in the chaotic phase exponentially.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/bec0ed1032204f288f0a20f052f68b27 Zobrazit plný text záznamu Full text from SpringerLink View record in DOAJ