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Optical response of two-level atoms with reflection geometry as a model of a quantum phase gate

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Title: Optical response of two-level atoms with reflection geometry as a model of a quantum phase gate
Authors: Oka, Hisaki Browse this author
Takeuchi, Shigeki2 Browse this author →KAKEN DB
Sasaki, Keiji Browse this author →KAKEN DB
Authors(alt): 竹内, 繁樹2
Issue Date: 20-Jul-2005
Publisher: American Physical Society
Journal Title: Physical Review A
Volume: 72
Start Page: 013816
Publisher DOI: 10.1103/PhysRevA.72.013816
Abstract: The nonlinear optical response obtained from a model system of a quantum phase gate is investigated. The model system consists of a thin infinite atomic layer of two-level atoms placed in front of a perfect reflecting mirror. The optical response obtained from the model system is semiclassically analyzed using the finite difference time domain method with the optical Bloch equations. It is shown that a nonlinear phase shift of π is achieved when the atomic layer is placed at an antinode of the input field. This result is consistent with the theoretical result obtained from a one- dimensional atom model [H. F. Hofmann, K. Kojima, S. Takeuchi, and K. Sasaki, J. Opt. B: Quantum Semiclassical Opt. 5, 218 (2003)]. The dependence of the nonlinear phase shift on the position of the atomic layer is also studied in detail.
Rights: Copyright © 2005 American Physical Society
Type: article
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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