Experimental quantum teleportation and multiphoton entanglement via interfering narrowband photon sources

Jian Yang, Xiao-Hui Bao, Han Zhang, Shuai Chen, Cheng-Zhi Peng, Zeng-Bing Chen, and Jian-Wei Pan
Phys. Rev. A 80, 042321 – Published 22 October 2009

Abstract

In this paper, we report a realization of synchronization-free quantum teleportation and narrowband three-photon entanglement through interfering narrowband photon sources. Since both the single-photon and the entangled photon pair utilized are completely autonomous, it removes the requirement of high-demanding synchronization techniques in long-distance quantum communication with pulsed spontaneous parametric down-conversion sources. The frequency linewidth of the three-photon entanglement realized is on the order of several MHz, which matches the requirement of atomic ensemble based quantum memories. Such a narrowband multiphoton source will have applications in some advanced quantum communication protocols and linear optical quantum computation.

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  • Received 3 January 2009

DOI:https://doi.org/10.1103/PhysRevA.80.042321

©2009 American Physical Society

Authors & Affiliations

Jian Yang1, Xiao-Hui Bao2,1, Han Zhang1, Shuai Chen1,2, Cheng-Zhi Peng1, Zeng-Bing Chen1, and Jian-Wei Pan1,2

  • 1Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
  • 2Physikalisches Institut der Universitaet Heidelberg, Philosophenweg 12, Heidelberg 69120, Germany

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Issue

Vol. 80, Iss. 4 — October 2009

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