期刊
SCIPOST PHYSICS
卷 2, 期 3, 页码 -出版社
SCIPOST FOUNDATION
DOI: 10.21468/SciPostPhys.2.3.018
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资金
- Gordon and Betty Moore Foundation's EPiQS Initiative [GBMF4302]
- National Science Foundation [DMR-1151786]
- David & Lucile Packard Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1151786] Funding Source: National Science Foundation
We compute the energy diffusion constant D, Lyapunov time tau(L) and butterfly velocity nu(B) in an inhomogeneous chain of coupled Majorana Sachdev-Ye-Kitaev (SYK) models in the large N and strong coupling limit. We find D <= nu(2)(B)tau(L) from a combination of analytical and numerical approaches. Our example necessitates the sharpening of postulated transport bounds based on quantum chaos.
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