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  Gaussian Entanglement for Quantum Key Distribution from a Single-Mode Squeezing Source

Eberle, T., Händchen, V., Duhme, J., Franz, T., Werner, R. F., & Schnabel, R. (2013). Gaussian Entanglement for Quantum Key Distribution from a Single-Mode Squeezing Source. New Journal of Physics, 15: 053049. doi:10.1088/1367-2630/15/5/053049.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-E9E3-8 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-AA49-4
Genre: Journal Article

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1110.3977 (Preprint), 618KB
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1110.3977
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File downloaded from arXiv at 2013-03-25 11:49
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 Creators:
Eberle, Tobias1, Author              
Händchen, Vitus1, Author              
Duhme, Jörg, Author
Franz, Torsten, Author
Werner, Reinhard F., Author
Schnabel, Roman1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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Free keywords: Quantum Physics, quant-ph
 Abstract: We report the realization of an Einstein-Podolsky-Rosen (EPR) entanglement source for gaussian continuous-variable quantum key distribution at 1550 nm. Our source is based on a single continuous-wave squeezed vacuum mode with 11.1 \pm 0.1 dB squeezing, combined with vacuum at a balanced beam splitter. The conditional variance product (Reid criterion, Phys. Rev. A 40 913, 1989) of this source is 0.31 \pm 0.01, well below the classical threshold 1. The maximal achievable key rate with security against collective attacks is of 0.38 bits/measurement. Although only a single squeezed beam was used, the conditional variance product is comparable to the best reported values using two squeezed beams.

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 Dates: 2011-10-1820132013
 Publication Status: Published in print
 Pages: 14 pages, 5 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1110.3977
DOI: 10.1088/1367-2630/15/5/053049
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Title: New Journal of Physics
  Other : New J. Phys.
Source Genre: Journal
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Publ. Info: Bristol, UK : Institute of Physics Pub.
Pages: - Volume / Issue: 15 Sequence Number: 053049 Start / End Page: - Identifier: ISSN: 1367-2630
CoNE: /journals/resource/954926913666