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

Physical Review A. Atomic, Molecular, and Optical Physics 68 巻 4 B 号 043813-1-043813-7 頁 2003-10-10 発行
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タイトル ( eng )
Entanglement and four-wave mixing effects in the dissipation-free nonlinear interaction of two photons at a single atom
作成者
Kojima Kunihiro
Takeuchi Shigeki
Sasaki Keiji
収録物名
Physical Review A. Atomic, Molecular, and Optical Physics
68
4 B
開始ページ 043813-1
終了ページ 043813-7
抄録
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.
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2003-10-10
権利情報
Copyright (c) 2003 American Physical Society.
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1094-1622
[DOI] 10.1103/PhysRevA.68.043813
[NCID] AA10764867
[DOI] http://dx.doi.org/10.1103/PhysRevA.68.043813