Open AccessHigh-dimensional entanglement for long distance quantum communication
Author(s) -
Juan Yin,
Yong Qian,
Xiaoqiang Li,
XiaoHui Bao,
Cheng-Zhi Peng,
Tao Yang,
Ge-Sheng Pan
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.060308
Subject(s) - quantum entanglement , quantum key distribution , physics , quantum information science , quantum network , quantum nonlocality , quantum mechanics , quantum sensor , photon , quantum , computer science
In this paper, we provide a scheme to generate a high-dimensional entanglement source for long distance quantum communication. We utilize a continuous wave pump laser to produce polarization-time two-body four-dimensional entangled photon pairs. Under 20 mW of pump power, we achieve 700 entangled photon pairs per second with a fidelity of 89%±3%. Compared with other known high dimension entangled sources, the developed source in the paper is easy to transmit over a long distance and its phase stability is easy to achieve. Therefore, the source is more suited for the future long distance high-dimensional quantum communication tasks and testing the quantum nonlocality, for example, long distance high dimensional quantum key distribution, experimental testing two-particle Greenberger-Horne-Zeilinger theorem, implementation of two-particle quantum pseudo telepathy, etc.