Generation of entangled lights with temporally reversed photon wave packets

We theoretically study the control of a weak quantum light in a resonant three-level condensed medium derived by a pair of resonant counterpropagating laser fields. We analytically demonstrate that the adiabatic switching on of one of the control fields generates an entangled state of photon wave pa...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2005-05, Vol.71 (5), Article 053802
Main Authors: Moiseev, S. A., Ham, B. S.
Format: Article
Language:English
Subjects:
AMPLITUDES
ATOMIC AND MOLECULAR PHYSICS
COUPLING
LASER RADIATION
OPTICS
PHOTONS
PULSES
QUANTUM ENTANGLEMENT
QUANTUM MECHANICS
VELOCITY
VISIBLE RADIATION
WAVE PACKETS
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Summary:We theoretically study the control of a weak quantum light in a resonant three-level condensed medium derived by a pair of resonant counterpropagating laser fields. We analytically demonstrate that the adiabatic switching on of one of the control fields generates an entangled state of photon wave packets moving together at subnormal slow velocity in the medium with relative amplitudes determined by the control laser fields. An abrupt switching-off the control field makes the entangled wave packets propagate in the opposite direction with temporally reversed profiles relative to each other. We have analyzed the quantum control of the entanglement generation in terms of the adiabatic and nonadiabatic switching operations of the coupling laser pulse.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.71.053802