Transforming Spatial Entanglement Using a Domain-Engineering Technique

X. Q. Yu, P. Xu, Z. D. Xie, J. F. Wang, H. Y. Leng, J. S. Zhao, S. N. Zhu, and N. B. Ming

Phys. Rev. Lett. 101, 233601 – Published 1 December 2008

Abstract

We study the spatial correlation of a two-photon entangled state produced in a multistripe periodically poled ${LiTaO}_{3}$ crystal by spontaneous parametric down-conversion. The far-field diffraction-interference experiments reveal that the transverse modulation of domain patterns transforms the spatial mode function of the two-photon state. This result offers an approach to prepare a novel type of two-photon state with a unique spatial entanglement by using a domain-engineering technique.

Received 30 May 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.233601

Authors & Affiliations

X. Q. Yu^1,2, P. Xu¹, Z. D. Xie¹, J. F. Wang¹, H. Y. Leng¹, J. S. Zhao¹, S. N. Zhu^1,*, and N. B. Ming¹

¹National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, China
²Physics Department, Southeast University, Nanjing, 211189, China

^*zhusn@nju.edu.cn; http://dsl.nju.edu.cn

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Vol. 101, Iss. 23 — 5 December 2008

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