The soft mode in the Sachdev-Ye-Kitaev model and its gravity dual
arXiv:1711.08467 · doi:10.1007/JHEP05(2018)183
Abstract
We give an exposition of the SYK model with several new results. A non-local correction to the Schwarzian effective action is found. The same action is obtained by integrating out the bulk degrees of freedom in a certain variant of dilaton gravity. We also discuss general properties of out-of-time-order correlators.
57 pages plus appendices, 6 figures. v.2: minor correction, additional references. v.3: minor addition, additional references; v.4: minor corrections; v.5: JHEP version