Deng, L.
and , M.
(2003),
Quantum Entanglement of Fock States with Perfectly Efficient Ultraslow Single-Probe Photon Four-Wave Mixing, Physical Review Letters, [online], https://doi.org/10.1103/PhysRevLett.91.123602
(Accessed October 17, 2025)
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Quantum Entanglement of Fock States with Perfectly Efficient Ultraslow Single-Probe Photon Four-Wave Mixing
Published
Author(s)
, M. G. Payne
Abstract
We propose a method to achieve quantum entanglement of two Fock states with perfectly efficient, ultraslow propagation enhanced four-wave mixing. A cold atomic medium is illuminated with a twomode cw control laser to produce coherent mixtures of excited states. An ultraslowly propagating, single-photon quantum probe field completes the four-wave mixing with 100% photon flux conversion efficiency, creating a depth dependent entanglement of two Fock states. We show that at a suitable propagation distance, a maximum entangled state is created with a single-photon wave-packet state that has 50% probability of being in each of two product-type Fock statesCitation
Physical Review Letters
Volume
91
Issue
12
Pub Type
Journals
Download Paper
Keywords
entanglement, wave mixing and Fock-state
Citation
Issues
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Created September 18, 2003, Updated November 10, 2018