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Group Velocity of a Probe Light in an Ensemble of Lambda Atoms under Two-Photon Resonance | Y. Li
; C. P. Sun
; | Date: |
10 Dec 2003 | Journal: | Phys. Rev. A 69, 051802(R) (2004) | Subject: | quant-ph | Abstract: | We study the propagation of a probe light in an ensemble of $Lambda$-type atoms, utilizing the dynamic symmetry as recently discovered when the atoms are coupled to a classical control field and a quantum probe field {[Sun {it et al.,} Phys. Rev. Lett. {f 91}, 147903 (2003)]}. Under two-photon resonance, we calculate the group velocity of the probe light with collective atomic excitations. Our result gives the dependence of the group velocity on the common one-photon detuning, and can be compared with the recent experiment (E. E. Mikhailov, Y. V. Rostovtsev, and G. R. Welch, quant-ph/0309173). | Source: | arXiv, quant-ph/0312093 | Services: | Forum | Review | PDF | Favorites |
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