Energy diffusion and the butterfly effect in inhomogeneous Sachdev-Ye-Kitaev chains
Abstract
We compute the energy diffusion constant D, Lyapunov time τL and butterfly velocity vB in an inhomogeneous chain of coupled Majorana Sachdev-Ye-Kitaev (SYK) models in the large N and strong coupling limit. We find D vB2 τL from a combination of analytical and numerical approaches. Our example necessitates the sharpening of postulated transport bounds based on quantum chaos.
0
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.