Research PapersNo Access

TWO-MODE ENTANGLEMENT AND SQUEEZING IN A THREE-LEVEL CASCADE ATOMIC SYSTEM

YUN-XIA PING

College of Fundamental Studies, Shanghai University of Engineering Science, Shanghai, China

https://doi.org/10.1142/S021798491002402XCited by:2 (Source: Crossref)

Abstract

The generation and evolution of entanglement and squeezing for the two-mode fields are discussed in a cascade three-level atomic system. Two photons of a strong external pump field induce atomic coherence between the top and bottom levels. The dynamics of this system in the presence of cavity losses is studied. It is shown that entanglement and squeezing between the two modes increase initially, then decrease and eventually disappear. The periods of them are extended with the increasing of the pump field intensity. The effects of the cavity losses on squeezing and entanglement are also discussed.

Keywords:

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