Adiabatic creation of atomic squeezing in dark states versus decoherences

Journal Article · Thu Jul 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.012112· OSTI ID:21440464

Gong, Z R; Sun, C P ^[1]; Xiaoguang, Wang ^[2]

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1. Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190 (China)
2. Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Hangzhou 310027 (China)

We study the multipartite correlations of the multiatom dark states, which are characterized by the atomic squeezing beyond the pairwise entanglement. It is shown that, in the photon storage process with atomic ensemble via the electromagnetically induced transparency (EIT) mechanism, the atomic squeezing and the pairwise entanglement can be created by adiabatically manipulating the Rabi frequency of the classical light field on the atomic ensemble. We also consider the sudden death for the atomic squeezing and the pairwise entanglement under various decoherence channels. An optimal time for generating the greatest atomic squeezing and pairwise entanglement is obtained by studying in detail the competition between the adiabatic creation of quantum correlation in the atomic ensemble and the decoherence that we describe with three typical decoherence channels.

• OSTI ID: 21440464
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 82; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BOSONS
CORRELATIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
MASSLESS PARTICLES
MECHANICS
OPACITY
OPTICAL PROPERTIES
PHOTONS
PHYSICAL PROPERTIES
QUANTUM DECOHERENCE
QUANTUM ENTANGLEMENT
QUANTUM MECHANICS
QUANTUM STATES
RADIATIONS
VISIBLE RADIATION