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Decoherence-free creation of atom-atom entanglement in a cavity via fractional adiabatic passage

Journal Article · · Physical Review. A
 [1]; ;  [1]
  1. Laboratoire de Physique, UMR CNRS 5027, Universite de Bourgogne, Boite Postale 47870, F-21078 Dijon (France)
We propose a robust and decoherence insensitive scheme to generate controllable entangled states of two three-level atoms interacting with an optical cavity and a laser beam. Losses due to atomic spontaneous transitions and to cavity decay are efficiently suppressed by employing fractional adiabatic passage and appropriately designed atom-field couplings. In this scheme the two atoms traverse the cavity-mode and the laser beam in opposite directions and become entangled in the free space outside the cavity. We also show that the coherence of a traveling atom can be transferred to the other one without populating the cavity mode.
OSTI ID:
20718347
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 72; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English

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