Energy diffusion and the butterfly effect in inhomogeneous Sachdev-Ye-Kitaev chains
We compute the energy diffusion constant $D$, Lyapunov time $\tau_{\text{L}}$ and butterfly velocity $v_{\text{B}}$ in an inhomogeneous chain of coupled Majorana Sachdev-Ye-Kitaev (SYK) models in the large $N$ and strong coupling limit. We find $D\le v_{\text{B}}^2 \tau_{\text{L}}$ from a combina...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SciPost
2017-05-01
|
| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.2.3.018 |