Quantum Quench of the Sachdev-Ye-Kitaev Model
MetadataShow full item record
CitationEberlein, Andreas, Valentin Kasper, Subir Sachdev, and Julia Steinberg. 2017. Quantum Quench of the Sachdev-Ye-Kitaev Model. Physics Review B 96: 205123.
AbstractWe describe the nonequilibrium quench dynamics of the Sachdev-Ye-Kitaev models of fermions with random all-to-all interactions. These provide tractable models of the dynamics of quantum systems without quasiparticle excitations. The Kadanoff-Baym equations show that, at long times, the fermion two-point function has a thermal form at a final temperature determined by energy conservation, and the numerical analysis is consistent with a thermalization rate proportional to this temperature. We also obtain an exact analytic solution of the quench dynamics in the large q limit of a model with q fermion interactions: in this limit, the thermalization of the two-point function is instantaneous.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:40992632
- FAS Scholarly Articles