Speeding up the spread of quantum information in chaotic systems

A bstract We explore the effect of introducing mild nonlocality into otherwise local, chaotic quantum systems, on the rate of information spreading and associated rates of entanglement generation and operator growth. We consider various forms of nonlocality, both in 1-dimensional spin chain models a...

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Bibliographic Details
Published inThe journal of high energy physics Vol. 2021; no. 12; pp. 1 - 35
Main Authors Eccles, Stefan, Fischler, Willy, Guglielmo, Tyler, Pedraza, Juan F., Racz, Sarah
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 06.12.2021
Springer Nature B.V
SpringerOpen
Subjects
AdS-CFT Correspondence
Chaos theory
Classical and Quantum Gravitation
Elementary Particles
Gauge theory
High energy physics
Holography and condensed matter physics (AdS/CMT)
Phenomenology
Physics
Physics and Astronomy
Quantum entanglement
Quantum Field Theories
Quantum Field Theory
Quantum phenomena
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
AdS-CFT Correspondence
Holography and condensed matter physics (AdS/CMT)
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Summary:A bstract We explore the effect of introducing mild nonlocality into otherwise local, chaotic quantum systems, on the rate of information spreading and associated rates of entanglement generation and operator growth. We consider various forms of nonlocality, both in 1-dimensional spin chain models and in holographic gauge theories, comparing the phenomenology of each. Generically, increasing the level of nonlocality increases the rate of information spreading, but in lattice models we find instances where these rates are slightly suppressed.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP12(2021)019