Cavityquantumelectrodynamics entangled photon source based on two truncated Rabi oscillations
Abstract
We discuss a cavityQED scheme to deterministically generate entangled photons pairs by using a threelevel atom successively coupled to two single longitudinal mode highQ cavities presenting polarization degeneracy. The first cavity is prepared in a welldefined Fock state with two photons with opposite circular polarizations while the second cavity remains in the vacuum state. Half of a resonant Rabi oscillation in each cavity transfers one photon from the first to the second cavity, leaving the photons entangled in their polarization degree of freedom. The feasibility of this implementation and some practical considerations are discussed for both microwave and optical regimes. In particular, Monte Carlo wavefunction simulations have been performed with stateoftheart parameter values to evaluate the success probability of the cavityQED source in producing entangled photon pairs as well as its entanglement capability.
 Authors:
 Departament de Fisica, Universitat Autonoma de Barcelona, E08193 Bellaterra (Spain)
 Publication Date:
 OSTI Identifier:
 20861624
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Journal of the Optical Society of America. Part B, Optical Physics; Journal Volume: 24; Journal Issue: 2; Other Information: DOI: 10.1364/JOSAB.24.000257; (c) 2007 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DEGREES OF FREEDOM; MICROWAVE RADIATION; MONTE CARLO METHOD; OSCILLATIONS; PHOTONATOM COLLISIONS; PHOTONS; POLARIZATION; PROBABILITY; QUANTUM ELECTRODYNAMICS; QUANTUM ENTANGLEMENT; QUANTUM MECHANICS; SIMULATION; VACUUM STATES; WAVE FUNCTIONS
Citation Formats
GarciaMaraver, Rocio, Eckert, Kai, Corbalan, Ramon, and Mompart, Jordi. Cavityquantumelectrodynamics entangled photon source based on two truncated Rabi oscillations. United States: N. p., 2007.
Web. doi:10.1364/JOSAB.24.000257.
GarciaMaraver, Rocio, Eckert, Kai, Corbalan, Ramon, & Mompart, Jordi. Cavityquantumelectrodynamics entangled photon source based on two truncated Rabi oscillations. United States. doi:10.1364/JOSAB.24.000257.
GarciaMaraver, Rocio, Eckert, Kai, Corbalan, Ramon, and Mompart, Jordi. Thu .
"Cavityquantumelectrodynamics entangled photon source based on two truncated Rabi oscillations". United States.
doi:10.1364/JOSAB.24.000257.
@article{osti_20861624,
title = {Cavityquantumelectrodynamics entangled photon source based on two truncated Rabi oscillations},
author = {GarciaMaraver, Rocio and Eckert, Kai and Corbalan, Ramon and Mompart, Jordi},
abstractNote = {We discuss a cavityQED scheme to deterministically generate entangled photons pairs by using a threelevel atom successively coupled to two single longitudinal mode highQ cavities presenting polarization degeneracy. The first cavity is prepared in a welldefined Fock state with two photons with opposite circular polarizations while the second cavity remains in the vacuum state. Half of a resonant Rabi oscillation in each cavity transfers one photon from the first to the second cavity, leaving the photons entangled in their polarization degree of freedom. The feasibility of this implementation and some practical considerations are discussed for both microwave and optical regimes. In particular, Monte Carlo wavefunction simulations have been performed with stateoftheart parameter values to evaluate the success probability of the cavityQED source in producing entangled photon pairs as well as its entanglement capability.},
doi = {10.1364/JOSAB.24.000257},
journal = {Journal of the Optical Society of America. Part B, Optical Physics},
number = 2,
volume = 24,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}

We predict a large cooperative effect involving twoatom twophoton vacuum Rabi oscillations in a highquality cavity. The twophoton emission occurs as a result of simultaneous deexcitation of both atoms with twophoton resonance condition {omega}{sub 1}+{omega}{sub 2}{approx_equal}{omega}{sub a}+{omega}{sub b}, where {omega}{sub 1},{omega}{sub 2} are the atomic transition frequencies and {omega}{sub a},{omega}{sub b} are the frequencies of the emitted photons. The actual resonance condition depends on the vacuum Rabi couplings. The effect can be realized either with identical atoms in a bimodal cavity or with nonidentical atoms in a singlemode cavity.

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