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Phys. Rev. A 76, 042317 (2007) [6 pages]

Entanglement generation in a two-mode quantum beat laser

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Manzoor Ikram1, Gao-xiang Li1,2, and M. Suhail Zubairy1,3,4
1Centre for Quantum Physics, COMSATS Institute of Information Technology, Islamabad, Pakistan
2Department of Physics, Huazhong Normal University, Wuhan 430079, China
3Institute for Quantum Studies and Department of Physics, Texas A&M University, College Station, Texas 77843-4242, USA
4Texas A&M University at Qatar, Education City, P.O. Box 23874, Doha, Qatar

Received 14 June 2007; published 11 October 2007

We analyze the quantum correlations between side modes of a quantum beat laser when a two-level atomic medium is driven strongly by a classical field. The squeezing and the entanglement generation of the cavity radiation are investigated. It turns out that there is neither squeezing nor entanglement when the strong driving field is resonant with the atomic transition but the generated light exhibits both two-mode squeezing and entanglement when the driving field is tuned away from the atomic transition.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.76.042317
DOI:
10.1103/PhysRevA.76.042317
PACS:
03.67.Mn, 42.50.Dv
 
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