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Title: A bound on chaos

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [1]
  1. Princeton Univ., NJ (United States)
  2. Stanford Univ., CA (United States)

We conjecture a sharp bound on the rate of growth of chaos in thermal quantum systems with a large number of degrees of freedom. Chaos can be diagnosed using an out-of-time-order correlation function closely related to the commutator of operators separated in time. We conjecture that the influence of chaos on this correlator can develop no faster than exponentially, with Lyapunov exponent λ L ≤ 2πk B T/ℏ. We give a precise mathematical argument, based on plausible physical assumptions, establishing this conjecture.

Research Organization:
Princeton Univ., NJ (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0009988
OSTI ID:
1434623
Journal Information:
Journal of High Energy Physics (Online), Vol. 2016, Issue 8; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 1047 works
Citation information provided by
Web of Science

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