TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.19.3.081
TI  - Ringdown in the SYK model
PY  - 2025/09/30
UR  - https://www.scipost.org/SciPostPhys.19.3.081
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 19
IS  - 3
SP  - 081
A1  - Dodelson, Matthew
AB  - We analyze thermal correlators in the Sachdev-Ye-Kitaev model away from the maximally chaotic limit. Despite the absence of a weakly curved black hole dual, the two point function decomposes into a sum over a discrete set of quasinormal modes. To compute the spectrum of modes, we analytically solve the Schwinger-Dyson equations to a high order in perturbation theory, and then numerically fit to a sum of exponentials using a technique analogous to the double cone construction. The resulting spectrum has a tree-like structure which is reminiscent of AdS black holes with curvature singularities. We present a simple toy model of stringy black holes that qualitatively reproduces some aspects of this structure.
ER  -

@Article{10.21468/SciPostPhys.19.3.081,
	title={{Ringdown in the SYK model}},
	author={Matthew Dodelson},
	journal={SciPost Phys.},
	volume={19},
	pages={081},
	year={2025},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.19.3.081},
	url={https://scipost.org/10.21468/SciPostPhys.19.3.081},
}