Entanglement Production under Collective Radiation

Details Entanglement Production under Collective Radiation Entanglement Production under Collective Radiation

2004-11-11

arxiv.org/abs/cond-mat/0411302v1

Laser Phys. 14 (2004) 1403-1414

Physics

Condensed Matter

Statistical Mechanics

Latex file, 23 pages

Scientific paper

The relation is studied between the entanglement production and collective radiation by an ensemble of atoms. Entanglement production is quantified by means of a general measure introduced earlier by the author. Primary emphasis is placed on the entanglement generated by pseudospin density matrices. The problem of collective atomic radiation can be described by the pseudospin evolution equations. These equations define the evolutional entanglement generated by the related density matrices. Under conditions of superradiant emission, the entanglement production exhibits sharp peaks at the delay time, where the intensity of radiation is maximal. The possibility of regulating the occurrence of such peaks by punctuated superradiance is discussed, which suggests the feasibility of {\it punctuated entanglement production}.

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