Effect of high-dimensional entanglement of Laguerre-Gaussian modes in parametric downconversion


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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/49849

Title:	Effect of high-dimensional entanglement of Laguerre-Gaussian modes in parametric downconversion
Authors:	Kawase, Daisuke Browse this author
	Miyamoto, Yoko Browse this author
	Takeda, Mitsuo Browse this author
	Sasaki, Keiji Browse this author →KAKEN DB
	Takeuchi, Shigeki Browse this author →KAKEN DB
Issue Date:	1-Apr-2009
Publisher:	Optical Society of America
Journal Title:	Journal of the Optical Society of America B: Optical Physics
Volume:	26
Issue:	4
Start Page:	797
End Page:	804
Publisher DOI:	10.1364/JOSAB.26.000797
Abstract:	We calculate the coincidence count probabilities when the photon pairs entangled in orbital angular momentum generated via spontaneous parametric downconversion are measured by using holograms with an m-fold dislocation, considering the nonzero crystal length. We find that the coincidence probabilities related to azimuthal changes in hologram positions deviate significantly from a sinusoidal curve, which has often been assumed in simple analyses. It is found that the main cause of this effect is the high-dimensional entanglement in Laguerre-Gaussian modes. We also find that the crystal length causes the hologram positions to change for the maximum coincidence probabilities.
Rights:	© 2009 Optical Society of America
Type:	article
URI:	http://hdl.handle.net/2115/49849
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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