Macroscopic quantum states in Dicke model of PT-symmetric non-Hermitian Hamiltonian and superradiant phase with imaginary atomic population

We in this paper study the macroscopic quantum states of a PT-symmetric Non-Hermitian Hamiltonian for N quantum-dots of two imaginary-levels in an optical cavity. The eigenstate energies are obtained in terms of spin-coherent-state variational method, in which PT-symmetric but non-unitary operator i...

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Bibliographic Details

Published in:	Results in Physics
Main Authors:	Ni Liu, Shan Huang, J.-Q. Liang
Format:	Article
Language:	English
Published:	Elsevier 2022-09-01
Subjects:	Dicke model PT-symmetric Non-Hermitian Superradiant phase with imaginary atomic population
Online Access:	http://www.sciencedirect.com/science/article/pii/S2211379722004673