Theory of dark-state polariton collapses and revivals

Details Theory of dark-state polariton collapses and revivals Theory of dark-state polariton collapses and revivals

2005-11-02

arxiv.org/abs/quant-ph/0511017v1

Physical Review A 73, 021803(R) (2006)

Physics

Quantum Physics

5 pages, 3 figures

Scientific paper

10.1103/PhysRevA.73.021803

We investigate the dynamics of dark-state polaritons in an atomic ensemble with ground-state degeneracy. A signal light pulse may be stored and retrieved from the atomic sample by adiabatic variation of the amplitude of a control field. During the storage process, a magnetic field causes rotation of the atomic hyperfine coherences, leading to collapses and revivals of the dark-state polariton number. These collapses and revivals should be observable in measurements of the retrieved signal field, as a function of storage time and magnetic field orientation.

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