General properties of fidelity in non-Hermitian quantum systems with PT symmetry

General properties of fidelity in non-Hermitian quantum systems with PT symmetry

The fidelity susceptibility is a tool for studying quantum phase transitions in the Hermitian condensed matter systems. Recently, it has been generalized with the biorthogonal basis for the non-Hermitian quantum systems. From the general perturbation description with the constraint of parity-time (P...

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Bibliographic Details
Main Authors:	Yi-Ting Tu, Iksu Jang, Po-Yao Chang, Yu-Chin Tzeng
Format:	Article
Language:	English
Published:	Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften 2023-03-01
Series:	Quantum
Online Access:	https://quantum-journal.org/papers/q-2023-03-23-960/pdf/

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