Title :
Ultra-long distance and efficient entanglement distribution over 200 kilometers
Author :
Dynes, J.F. ; Takesue, H. ; Yuan, Z.L. ; Sharpe, A.W. ; Harada, K. ; Honjo, T. ; Kamada, H. ; Tadanaga, O. ; Nishida, Y. ; Asobe, M. ; Shields, A.J.
Author_Institution :
Cambridge Res. Lab., Toshiba Res. Eur. Ltd., Cambridge, UK
Abstract :
Entanglement distribution over 200 kilometers of optical fiber is demonstrated with practical, low-cost, InGaAs avalanche photodiodes. High coincidence count rates are also observed indicating entangled based quantum key distribution is feasible over ultra-long distances.
Keywords :
III-V semiconductors; avalanche photodiodes; gallium arsenide; indium compounds; optical fibre communication; quantum cryptography; quantum entanglement; quantum optics; InGaAs; avalanche photodiodes; distance 200 km; high-coincidence count rate; optical fiber entanglement distribution; quantum key distribution; ultra-long distance; Avalanche photodiodes; Detectors; Filters; Indium gallium arsenide; Intensity modulation; Laboratories; Optical fibers; Pulse amplifiers; Pulse modulation; Quantum entanglement; (060.5565) Quantum communications; (270.5565) Quantum communications; (270.5568) Quantum cryptography; (270.5585) Quantum Information and processing;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
