Document Type
Article
Publication Date
1-1-2009
Abstract
We investigate the directional property of photons emitted spontaneously from a partially-excited many-atom system. There exists a strong directional correlation between the emitted photons and the photons that have been absorbed by laser excitation and among all emitted photons themselves. Such a strong correlation arises from entanglement of W-type generated in the atomic system during the process of absorption and emission. (c) 2009 Elsevier B.V. All rights reserved.
Keywords
Entanglement, Spontaneous emission, Directional property
Divisions
PHYSICS
Publication Title
Physics Letters A
Volume
373
Issue
18-19
Publisher
Elsevier
Additional Information
Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
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