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Entanglement and four-wave mixing effects in the dissipation-free nonlinear interaction of two photons at a single atom

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Title: Entanglement and four-wave mixing effects in the dissipation-free nonlinear interaction of two photons at a single atom
Authors: Hofmann, Holger F. Browse this author
Kojima, Kunihiro Browse this author
Takeuchi, Shigeki3 Browse this author →KAKEN DB
Sasaki, Keiji Browse this author →KAKEN DB
Authors(alt): 竹内, 繁樹3
Issue Date: 10-Oct-2003
Publisher: American Physical Society
Journal Title: Physical Review A
Volume: 68
Start Page: 043813
Publisher DOI: 10.1103/PhysRevA.68.043813
Abstract: We investigate the nonlinear interaction between two photons in a single-input pulse at an atomic two-level nonlinearity. A one-dimensional model for the propagation of light to and from the atom is used to describe the precise spatiotemporal coherence of the two-photon state. It is shown that the interaction generates spatiotemporal entanglement in the output state similar to the entanglement observed in parametric down-conversion. A method of generating photon pairs from coherent pump light using this quantum-mechanical four-wave mixing process is proposed.
Rights: Copyright © 2003 American Physical Society
Relation: http://www.aps.org/
Type: article
URI: http://hdl.handle.net/2115/5552
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 竹内 繁樹

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