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Phys. Rev. A 75, 033816 (2007) [8 pages]

Two-mode single-atom laser as a source of entangled light

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M. Kiffner1,*, M. S. Zubairy1,2,3,†, J. Evers1,‡, and C. H. Keitel1,§
1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
2Institute for Quantum Studies and Department of Physics, Texas A&M University, College Station, Texas 77843, USA
3Texas A&M University at Qatar, Education City, P.O. Box 23874, Doha, Qatar

Received 22 December 2006; revised 25 January 2007; published 28 March 2007

A two-mode single-atom laser is considered, with the aim of generating entanglement in macroscopic light. Two transitions in the four-level gain medium atom independently interact with the two cavity modes, while two other transitions are driven by control laser fields. Atomic relaxation as well as cavity losses are taken into account. We show that this system is a source of macroscopic entangled light over a wide range of control parameters and initial states of the cavity field.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.75.033816
DOI:
10.1103/PhysRevA.75.033816
PACS:
42.50.Dv, 03.67.Mn, 42.50.Pq

*Electronic address: martin.kiffner@mpi-hd.mpg.de

†Electronic address: zubairy@physics.tamu.edu

‡Electronic address: joerg.evers@mpi-hd.mpg.de

§Electronic address: keitel@mpi-hd.mpg.de

 
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