Minimal Model for Fast Scrambling.
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ABSTRACT:
SUBMITTER: Belyansky R
PROVIDER: S-EPMC8049839 | biostudies-literature | 2020 Sep
REPOSITORIES: biostudies-literature
Publications
Minimal Model for Fast Scrambling.
Belyansky Ron R Bienias Przemyslaw P Kharkov Yaroslav A YA Gorshkov Alexey V AV Swingle Brian B
Physical review letters 20200901 13
We study quantum information scrambling in spin models with both long-range all-to-all and short-range interactions. We argue that a simple global, spatially homogeneous interaction together with local chaotic dynamics is sufficient to give rise to fast scrambling, which describes the spread of quantum information over the entire system in a time that is logarithmic in the system size. This is illustrated in two tractable models: (1) a random circuit with Haar random local unitaries and a global ...[more]
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