A Caltech Library Service

More on complex Sachdev-Ye-Kitaev eternal wormholes

Zhang, Pengfei (2021) More on complex Sachdev-Ye-Kitaev eternal wormholes. Journal of High Energy Physics, 2021 (3). Art. No. 87. ISSN 1126-6708. doi:10.1007/JHEP03(2021)087.

[img] PDF - Published Version
Creative Commons Attribution.

[img] PDF - Submitted Version
Creative Commons Attribution.


Use this Persistent URL to link to this item:


In this work, we study a generalization of the coupled Sachdev-Ye-Kitaev (SYK) model with U(1) charge conservations. The model contains two copies of the complex SYK model at different chemical potentials, coupled by a direct hopping term. In the zero-temperature and small coupling limit with small averaged chemical potential, the ground state is an eternal wormhole connecting two sides, with a specific charge Q = 0, which is equivalent to a thermofield double state. We derive the conformal Green’s functions and determine corresponding IR parameters. At higher chemical potential, the system transit into the black hole phase. We further derive the Schwarzian effective action and study its quench dynamics. Finally, we compare numerical results with the analytical predictions.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Zhang, Pengfei0000-0002-7408-0918
Additional Information:© 2021 The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. Article funded by SCOAP3. Received: December 1, 2020; Revised: January 22, 2021; Accepted: January 22, 2021; Published: March 8, 2021. We especially thank Yingfei Gu for helpful discussions. P.Z. acknowledges support from the Walter Burke Institute for Theoretical Physics at Caltech.
Group:Walter Burke Institute for Theoretical Physics
Funding AgencyGrant Number
Walter Burke Institute for Theoretical Physics, CaltechUNSPECIFIED
Subject Keywords:1/N Expansion; AdS-CFT Correspondence; Conformal Field Theory
Issue or Number:3
Record Number:CaltechAUTHORS:20210111-160822175
Persistent URL:
Official Citation:Zhang, P. More on complex Sachdev-Ye-Kitaev eternal wormholes. J. High Energ. Phys. 2021, 87 (2021).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107400
Deposited By: George Porter
Deposited On:12 Jan 2021 15:48
Last Modified:16 Nov 2021 19:02

Repository Staff Only: item control page