Temporal fluctuations of correlators in integrable and chaotic quantum systems

Temporal fluctuations of correlators in integrable and chaotic quantum systems

We provide bounds on temporal fluctuations around the infinite-time average of out-of-time-ordered and time-ordered correlators of many-body quantum systems without energy gap degeneracies. For physical initial states, our bounds predict the exponential decay of the temporal fluctuations as a functi...

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Bibliographic Details
Main Author:	Talía L. M. Lezama, Yevgeny Bar Lev, Lea F. Santos
Format:	Article
Language:	English
Published:	SciPost 2023-12-01
Series:	SciPost Physics
Online Access:	https://scipost.org/SciPostPhys.15.6.244

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