Group velocity of a probe light in an ensemble of {lambda} atoms under two-photon resonance

Journal Article · Sat May 01 04:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.69.051802· OSTI ID:20641092

Li, Y; Sun, C P ^[1]

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1. Institute of Theoretical Physics, Chinese Academy of Science, Beijing, 100080 (China)

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 et al., Phys. Rev. Lett. 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 of E. E. Mikhailov, Y. V. Rostovtsev, and G. R. Welch, e-print quant-ph/0309173.

• OSTI ID: 20641092
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 69; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
CONTROL
EXCITATION
EXCITED STATES
LIGHT TRANSMISSION
MULTI-PHOTON PROCESSES
OPTICS
PHOTON-ATOM COLLISIONS
PHOTONS
QUANTUM MECHANICS
RESONANCE
SUN
SYMMETRY
VELOCITY
VISIBLE RADIATION