A Physical Measure for Characterizing Crossover from Integrable to Chaotic Quantum Systems

In this paper, a quantity that describes a response of a system’s eigenstates to a very small perturbation of physical relevance is studied as a measure for characterizing crossover from integrable to chaotic quantum systems. It is computed from the distribution of very small, rescaled components of...

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Bibliographic Details

Published in:	Entropy
Main Authors:	Chenguang Y. Lyu, Wen-Ge Wang
Format:	Article
Language:	English
Published:	MDPI AG 2023-02-01
Subjects:	integrability-chaos cross-over quantum chaos eigenstate statistics transition probability Lipkin-Meshkov-Glick (LMG) model
Online Access:	https://www.mdpi.com/1099-4300/25/2/366