Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.73.013825
Title: Possibility of inhomogeneous coupling leading to decoherence in an electromagnetically-induced-transparency quantum-memory process
Authors: Liu, X.-J. 
Liu, Z.-X.
Liu, X.
Ge, M.-L.
Issue Date: 2006
Source: Liu, X.-J., Liu, Z.-X., Liu, X., Ge, M.-L. (2006). Possibility of inhomogeneous coupling leading to decoherence in an electromagnetically-induced-transparency quantum-memory process. Physical Review A - Atomic, Molecular, and Optical Physics 73 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.73.013825
Abstract: We study the effect of inhomogeneous coupling between atoms and external light fields on quantum memories that employ electromagnetically induced transparency (EIT). By introducing atomic subensembles to describe the present inhomogeneous coupling case we find that there is a nonsymmetric dark-state subspace that allows the EIT quantum-memory technique to function perfectly. This shows that such a memory scheme can work ideally even if the atomic state is very far from being a symmetric one. © 2006 The American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/97571
ISSN: 10502947
DOI: 10.1103/PhysRevA.73.013825
Appears in Collections:Staff Publications

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