APS » PROLA » Phys. Rev. Lett. » Volume 81 » Issue 15

Phys. Rev. Lett. 81, 3283 - 3286 (1998)

Practical Free-Space Quantum Key Distribution over 1 km

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W. T. Buttler, R. J. Hughes, P. G. Kwiat, S. K. Lamoreaux, G. G. Luther, G. L. Morgan, J. E. Nordholt, C. G. Peterson, and C. M. Simmons
University of California, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

Featured in Phys. Rev. Focus Received 21 May 1998

A working free-space quantum key distribution system has been developed and tested over an outdoor optical path of ∼1 km at Los Alamos National Laboratory under nighttime conditions. Results show that free-space quantum key distribution can provide secure real-time key distribution between parties who have a need to communicate secretly. Finally, we examine the feasibility of surface to satellite quantum key distribution.


©1998 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v81/p3283
DOI: 10.1103/PhysRevLett.81.3283
PACS: 42.79.Sz, 03.67.Dd, 03.67.Hk

See Also

Comment: Thomas Durt, Comment on “Practical Free-Space Quantum Key Distribution over 1 km”, Phys. Rev. Lett. 83, 2476 (1999)

Reply: W. T. Buttler, R. J. Hughes, P. G. Kwiat, S. K. Lamoreaux, G. L. Morgan, J. E. Nordholt, and C. G. Peterson, Buttler et al. Reply:, Phys. Rev. Lett. 83, 2477 (1999)

Focus Story: Phys. Rev. Focus 2, story 17

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