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Description
  • We investigate the main limitations which prevent the continuous-variable quantum key distribution protocols from achieving long distances in the finite-size setting. We propose a double-modulation protocol which allows using each state for both channel estimation and key distribution. As opposed to the standard method, we optimize the parameters of the protocol and consider squeezed as well as coherent states as a signal. By optimally combining the resources the key rate can approach the theoretical limit for long distances, and one can obtain about ten times higher key rate using ten times shorter block size than in the current state-of-the-art implementation
  • We investigate the main limitations which prevent the continuous-variable quantum key distribution protocols from achieving long distances in the finite-size setting. We propose a double-modulation protocol which allows using each state for both channel estimation and key distribution. As opposed to the standard method, we optimize the parameters of the protocol and consider squeezed as well as coherent states as a signal. By optimally combining the resources the key rate can approach the theoretical limit for long distances, and one can obtain about ten times higher key rate using ten times shorter block size than in the current state-of-the-art implementation (en)
Title
  • Long-distance continuous-variable quantum key distribution with efficient channel estimation
  • Long-distance continuous-variable quantum key distribution with efficient channel estimation (en)
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  • Long-distance continuous-variable quantum key distribution with efficient channel estimation
  • Long-distance continuous-variable quantum key distribution with efficient channel estimation (en)
skos:notation
  • RIV/61989592:15310/14:33150922!RIV15-MSM-15310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(7E13032), P(GC13-27533J)
http://linked.open...iv/cisloPeriodika
  • 6
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 26562
http://linked.open...ai/riv/idVysledku
  • RIV/61989592:15310/14:33150922
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • estimation; channel; efficient; distribution; key; quantum; continuous-variable; Long-distance (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [CD8634931FCE]
http://linked.open...i/riv/nazevZdroje
  • Physical Review A
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 90
http://linked.open...iv/tvurceVysledku
  • Filip, Radim
  • Usenko, Vladyslav
  • Ruppert, László Gábor
issn
  • 1050-2947
number of pages
http://bibframe.org/vocab/doi
  • 10.1103/PhysRevA.90.062310
http://localhost/t...ganizacniJednotka
  • 15310
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