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  A universal bound on Quantum Chaos from Random Matrix Theory

Choudhury, S., & Mukherjee, A. (in preparation). A universal bound on Quantum Chaos from Random Matrix Theory.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-82B9-A Version Permalink: http://hdl.handle.net/21.11116/0000-0002-E95C-1
Genre: Paper

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1811.01079.pdf (Preprint), 326KB
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 Creators:
Choudhury, Sayantan1, Author              
Mukherjee, Arkaprava, Author
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1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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Free keywords: High Energy Physics - Theory, hep-th, Condensed Matter, Statistical Mechanics, cond-mat.stat-mech,General Relativity and Quantum Cosmology, gr-qc,High Energy Physics - Phenomenology, hep-ph,Quantum Physics, quant-ph
 Abstract: In this article, using the principles of Random Matrix Theory (RMT), we give a measure of quantum chaos by quantifying Spectral From Factor (SFF) appearing from the computation of two-point Out of Time Order Correlation function (OTOC) expressed in terms of square of the commutator bracket of quantum operators which are separated in time. We also provide a strict model independent bound on the measure of quantum chaos, $-1/N(1-1/\pi)\leq {\bf SFF}\leq 0$ and $0\leq {\bf SFF}\leq 1/\pi N$, valid for thermal systems with a large and small number of degrees of freedom respectively. Based on the appropriate physical arguments we give a precise mathematical derivation to establish this alternative strict bound of quantum chaos.

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 Dates: 2018-11-02
 Publication Status: Not specified
 Pages: 4 pages, 2 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1811.01079
URI: http://arxiv.org/abs/1811.01079
 Degree: -

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