Experimental quantum teleportation and multiphoton entanglement via interfering narrowband photon sources

Journal Article · Thu Oct 15 00:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.042321· OSTI ID:21316374

Jian, Yang; Han, Zhang; Chengzhi, Peng; Zengbing, Chen ^[1]; Xiaohui, Bao ^[2]; Shuai, Chen; Jianwei, Pan ^[1]

---

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

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.

• OSTI ID: 21316374
• Journal Information: Physical Review. A, Vol. 80, Issue 4; Other Information: DOI: 10.1103/PhysRevA.80.042321; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMMUNICATIONS
CONVERSION
DISTANCE
EQUIPMENT
LIGHT SOURCES
MHZ RANGE
MULTI-PHOTON PROCESSES
OPTICS
PHOTONS
QUANTUM COMPUTERS
QUANTUM ENTANGLEMENT
QUANTUM TELEPORTATION
SPECTRA
SYNCHRONIZATION