Feasibility of free space quantum key distribution with coherent polarization states

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dc.creatorElser, D.
dc.creatorBartley, T.
dc.creatorHeim, B.
dc.creatorWittmann, Ch.
dc.creatorSych, D.
dc.creatorLeuchs, G.
dc.date2008-11-28
dc.date2009-03-13
dc.date.accessioned2026-07-07T13:10:52Z
dc.date.available2026-07-07T13:10:52Z
dc.descriptionWe demonstrate for the first time the feasibility of free space quantum key distribution with continuous variables under real atmospheric conditions. More specifically, we transmit coherent polarization states over a 100m free space channel on the roof of our institute's building. In our scheme, signal and local oscillator are combined in a single spatial mode which auto-compensates atmospheric fluctuations and results in an excellent interference. Furthermore, the local oscillator acts as spatial and spectral filter thus allowing unrestrained daylight operation.
dc.description12 pages, 8 figures, extensions in sections 2, 3.1, 3.2 and 4. This is an author-created, un-copyedited version of an article accepted for publication in New Journal of Physics (Special Issue on Quantum Cryptography: Theory and Practice). IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it
dc.identifierhttps://arxiv.org/abs/0811.4756
dc.identifierhttp://arxiv.org/abs/0811.4756
dc.identifierNew J. Phys. 11, 045014 (2009)
dc.identifierdoi:10.1088/1367-2630/11/4/045014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/229121
dc.subjectQuantum Physics
dc.subjectAtmospheric and Oceanic Physics
dc.subjectOptics
dc.titleFeasibility of free space quantum key distribution with coherent polarization states
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