Nonlinear interaction of two photons with a one-dimensional atom : Spatiotemporal quantum coherence in the emitted field

Physical Review A. Atomic, Molecular, and Optical Physics Volume 68 Issue 1 Page 013803-1-013803-13 published_at 2003-07-02
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Title ( eng )
Nonlinear interaction of two photons with a one-dimensional atom : Spatiotemporal quantum coherence in the emitted field
Creator
Kojima Kunihiro
Takeuchi Shigeki
Sasaki Keiji
Source Title
Physical Review A. Atomic, Molecular, and Optical Physics
Volume 68
Issue 1
Start Page 013803-1
End Page 013803-13
Abstract
The nonlinear photon-photon interaction mediated by a single two-level atom is studied theoretically based on a one-dimensional model of the field-atom interaction. This model allows us to determine the effects of an atomic nonlinearity on the spatiotemporal coherence of a two-photon state. Specifically, the complete twophoton output wave function can be obtained for any two-photon input wave function. It is shown that the quantum interference between the components of the output state associated with different interaction processes causes bunching and antibunching in the two-photon statistics. This theory may be useful for various applications in photon manipulation, e.g., quantum information processing using photonic qubits, quantum nondemolition measurements, and the generation of entangled photons.
Language
eng
Resource Type journal article
Publisher
American Physical Society
Date of Issued 2003-07-02
Rights
Copyright (c) 2003 American Physical Society.
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 1094-1622
[DOI] 10.1103/PhysRevA.68.013803
[NCID] AA10764867
[DOI] http://dx.doi.org/10.1103/PhysRevA.68.013803