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Title: Dynamic photon-mode selection in Dicke superradiance

Abstract

We examine the mode structures of photons emitted by collective spontaneous decay of N{sub A}>1 excited atoms confined in a small volume. By introducing the notion of dynamical modes, we show how the emission process selects a set of time-dependent mode functions in which photons are optimally occupied. In particular we show that the effective number of such dynamical modes is governed by the separability of the two-time correlation function of atomic dipoles. Due to the nonlinearity of atomic dipoles and quantum fluctuations, more than one mode can be involved even in the large-atom-number limit.

Authors:
;  [1]
  1. Department of Physics and Institute of Theoretical Physics, The Chinese University of Hong Kong, Shatin SAR (Hong Kong)
Publication Date:
OSTI Identifier:
20982404
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.75.033813; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; CORRELATION FUNCTIONS; DECAY; DIPOLES; EXCITED STATES; FLUCTUATIONS; MODE SELECTION; NONLINEAR PROBLEMS; PHOTON-ATOM COLLISIONS; PHOTONS; SUPERRADIANCE; TIME DEPENDENCE

Citation Formats

Law, C. K., and Lee, S. K. Y. Dynamic photon-mode selection in Dicke superradiance. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.033813.
Law, C. K., & Lee, S. K. Y. Dynamic photon-mode selection in Dicke superradiance. United States. doi:10.1103/PHYSREVA.75.033813.
Law, C. K., and Lee, S. K. Y. Thu . "Dynamic photon-mode selection in Dicke superradiance". United States. doi:10.1103/PHYSREVA.75.033813.
@article{osti_20982404,
title = {Dynamic photon-mode selection in Dicke superradiance},
author = {Law, C. K. and Lee, S. K. Y.},
abstractNote = {We examine the mode structures of photons emitted by collective spontaneous decay of N{sub A}>1 excited atoms confined in a small volume. By introducing the notion of dynamical modes, we show how the emission process selects a set of time-dependent mode functions in which photons are optimally occupied. In particular we show that the effective number of such dynamical modes is governed by the separability of the two-time correlation function of atomic dipoles. Due to the nonlinearity of atomic dipoles and quantum fluctuations, more than one mode can be involved even in the large-atom-number limit.},
doi = {10.1103/PHYSREVA.75.033813},
journal = {Physical Review. A},
number = 3,
volume = 75,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}