Atomic quantum memory: Cavity versus single-pass schemes

Journal Article · Fri Apr 01 00:00:00 EST 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.71.043801· OSTI ID:20653340

Dantan, A; Bramati, A; Pinard, M ^[1]

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1. Laboratoire Kastler Brossel, Universite Pierre et Marie Curie, Case 74, 4 place Jussieu, 75252 Paris Cedex 05 (France)

We present a quantum mechanical treatment for both atomic and field fluctuations of an atomic ensemble interacting with propagating fields, either in electromagnetically induced transparency (EIT) or in a Raman situation. The atomic spin noise spectra and the outgoing field spectra are calculated in both situations. For suitable parameters both EIT and Raman schemes efficiently preserve the quantum state of the incident probe field in the transfer process with the atoms, although a single-pass scheme is shown to be intrinsically less efficient than a cavity scheme.

• OSTI ID: 20653340
• Journal Information: Physical Review. A, Vol. 71, Issue 4; Other Information: DOI: 10.1103/PhysRevA.71.043801; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
CORRELATIONS
DATA TRANSMISSION
ENERGY LEVELS
ENERGY SPECTRA
FLUCTUATIONS
NOISE
OPACITY
OPTICS
QUANTUM MECHANICS
RAMAN EFFECT
SPIN