Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session A56: Kitaev Model Theory and Experiment
8:00 AM–11:00 AM,
Monday, March 2, 2020
Room: Mile High Ballroom 2C
Sponsoring
Units:
DCMP GMAG
Chair: Joseph Paddison, Oak Ridge National Lab
Abstract: A56.00004 : Soft modes in the complex Sachdev-Ye-Kitaev model*
Abstract 
Presenter:
Grigory Tarnopolsky
(Harvard University)
Authors:
Yingfei Gu
(Harvard University)
Alexei Kitaev
(Physics, Caltech)
Subir Sachdev
(Harvard University)
Grigory Tarnopolsky
(Harvard University)
The conserved charge leads to a compact scalar field in the effective action, from which
we derive the many-body density of states and extract the charge compressibility.
We compute the latter via three distinct numerical methods and obtain consistent results.
*Y.G. is supported by the Gordon and Betty Moore Foundation EPiQS Initiative through Grant (GBMF-4306) and DOE grant, DE-SC0019030. A.K. is supported by the Simons Foundation under grant 376205 and through the “It from Qubit” program, as well as by the Institute of Quantum Information and Matter, a NSF Frontier center funded in part by the Gordon and Betty Moore Foundation. S.S. and G.T. are supported by DOE grant, DE-SC0019030. G.T. acknowledges support from the MURI grant W911NF-14-1-0003 from ARO and by DOE grant DE-SC0007870
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