Group velocity of a probe light in an ensemble ofatoms under two-photon resonance
- 14 May 2004
- journal article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 69 (5)
- https://doi.org/10.1103/physreva.69.051802
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. {\bf 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).Comment: 4 pages, 3 figureKeywords
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This publication has 24 references indexed in Scilit:
- Quasi-Spin-Wave Quantum Memories with a Dynamical SymmetryPhysical Review Letters, 2003
- Storage of Light in Atomic VaporPhysical Review Letters, 2001
- Observation of coherent optical information storage in an atomic medium using halted light pulsesNature, 2001
- Ultraslow Group Velocity and Enhanced Nonlinear Optical Effects in a Coherently Driven Hot Atomic GasPhysical Review Letters, 1999
- Light speed reduction to 17 metres per second in an ultracold atomic gasNature, 1999
- Coherent population trapping in cesium: Dark lines and coherent microwave emissionPhysical Review A, 1998
- Spectroscopy in Dense Coherent Media: Line Narrowing and Interference EffectsPhysical Review Letters, 1997
- Buffer-gas-induced linewidth reduction of coherent dark resonances to belowHzPhysical Review A, 1997
- Electromagnetically Induced TransparencyPhysics Today, 1997
- Giant Kerr nonlinearities obtained by electromagnetically induced transparencyOptics Letters, 1996