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| Author |
Pirandola, Stefano; Mancini, Stefano; Lloyd, Seth; Braunstein, Samuel L. |
| Title |
Continuous-variable quantum cryptography using two-way quantum communication |
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Journal Article |
| Year |
2008 |
Publication |
Nature Physics |
Abbreviated Journal |
Nat. Phys. |
| Volume |
4 |
Issue |
9 |
Pages |
726-730 |
Keywords  |
fromIPMRAS |
| Abstract |
Quantum cryptography has recently been extended to continuous-variable systems, such as the bosonic modes of the electromagnetic field possessing continuous degrees of freedom. In particular, several cryptographic protocols have been proposed and experimentally implemented using bosonic modes with Gaussian statistics. These protocols have shown the possibility of reaching very high secret key rates, even in the presence of strong losses in the quantum communication channel. Despite this robustness to loss, their security can be affected by more general attacks where extra Gaussian noise is introduced by the eavesdropper. Here, we show a `hardware solution' for enhancing the security thresholds of these protocols. This is possible by extending them to two-way quantum communication where subsequent uses of the quantum channel are suitably combined. In the resulting two-way schemes, one of the honest parties assists the secret encoding of the other, with the chance of a non-trivial superadditive enhancement of the security thresholds. These results should enable the extension of quantum cryptography to more complex quantum communications. |
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Kopp, Victor I.; Churikov, Victor M.; Genack, Azriel Z. |
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Chiral-fiber gratings sense the environment |
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Conference Article |
| Year |
2008 |
Publication |
Laser Focus World |
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44 |
Issue |
6 |
Pages |
76-79 |
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chiral fiber gratings, chiral gratings, from chiralphotonics |
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The article focuses on the use of chiral fiber gratings in sensing. It discusses the production of chiral optical fibers which are created through twisting fibers. It cites experiments concerning the function of chiral-fiber grating produced by twisting optical fibers. The process and results of the experiments are also discussed in the article. |
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850 |
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Anant, Vikas; Kerman, Andrew J.; Dauler, Eric A.; Yang, Joel K. W.; Rosfjord, Krist.ine M.; Berggren, Karl K. |
| Title |
Optical properties of superconducting nanowire single-photon detectors |
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Journal Article |
| Year |
2008 |
Publication |
Optics Express |
Abbreviated Journal |
Opt. Express |
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16 |
Issue |
14 |
Pages |
10750 |
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1094-4087 |
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413 |
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Thijs de Graauw; Nick Whyborn; Frank Helmich; Pieter Dieleman; Peter Roelfsema; Emmanuel Caux; Tom Phillips; Jürgen Stutzki; Douwe Beintema; Arnold Benz; Nicolas Biver; Adwin Boogert; Francois Boulanger; Sergey Cherednichenko; Odile Coeur-Joly; Claudia Comito; Emmanuel Dartois; Albrecht de Jonge; Gert de Lange; Ian Delorme; Anna DiGiorgio; Luc Dubbeldam; Kevin Edwards; Michael Fich; Rolf Güsten; Fabrice Herpin; Netty Honingh; Robert Huisman; Herman Jacobs; Willem Jellema; Jon Kawamura; Do Kester; Teun Klapwijk; Thomas Klein; Jacob Kooi; Jean-Michel Krieg; Carsten Kramer; Bob Kruizenga; Wouter Laauwen; Bengt Larsson; Christian Leinz; Rene Liseau; Steve Lord; Willem Luinge; Anthony Marston; Harald Merkel; Rafael Moreno; Patrick Morris; Anthony Murphy; Albert Naber; Pere Planesas; Jesus Martin-Pintado; Micheal Olberg; Piotr Orleanski; Volker Ossenkopf; John Pearson; Michel Perault; Sabine Phillip; Mirek Rataj; Laurent Ravera; Paolo Saraceno; Rudolf Schieder; Frank Schmuelling; Ryszard Szczerba; Russell Shipman; David Teyssier; Charlotte Vastel; Huib Visser; Klaas Wildeman; Kees Wafelbakker; John Ward; Roonan Higgins; Henri Aarts; Xander Tielens; Peer Zaal |
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The Herschel-heterodyne instrument for the far-infrared (HIFI): instrument and pre-launch testing |
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Conference Article |
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2008 |
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Proc. SPIE |
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7010 |
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701004 |
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422 |
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Li, Mo; Pernice, W. H. P.; Xiong, C.; Baehr-Jones, T.; Hochberg, M.; Tang, H. X. |
| Title |
Harnessing optical forces in integrated photonic circuits |
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Journal Article |
| Year |
2008 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
456 |
Issue |
7221 |
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480-484 |
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0028-0836 |
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425 |
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