Superradiance, disorder, and the non-Hermitian Hamiltonian in open quantum systems

Journal Article · Wed Oct 15 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4899219· OSTI ID:22307993

Celardo, G. L.; Biella, A.; Giusteri, G. G.; Mattiotti, F. ^[1]; Zhang, Y.; Kaplan, L. ^[2]

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1. Dipartimento di Matematica e Fisica and Interdisciplinary Laboratories for Advanced Materials Physics, Università Cattolica, via Musei 41, 25121 Brescia (Italy)
2. Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118 (United States)

We first briefly review the non-Hermitian effective Hamiltonian approach to open quantum systems and the associated phenomenon of superradiance. We next discuss the superradiance crossover in the presence of disorder and the relationship between superradiance and the localization transition. Finally, we investigate the regime of validity of the energy-independent effective Hamiltonian approximation and show that the results obtained by these methods are applicable to realistic physical systems.

• OSTI ID: 22307993
• Journal Information: AIP Conference Proceedings, Vol. 1619, Issue 1; Conference: 4. conference on nuclei and mesoscopic physics 2014, East Lansing, MI (United States), 5-9 May 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
APPROXIMATIONS
HAMILTONIANS
HERMITIAN OPERATORS
REVIEWS
SUPERRADIANCE