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Description
  • Bezpečnost kvantové distribuce klíče s koherentními stavy a homodynní nebo heterodynní detekcí skrz fázově nesenzitivní zesilující kanál je analyzována. Na rozdíl od ztrátového kanálu, bezpečnost proti kolektivním útokům je garantována pro ideální zesilovač, jestliže je použita přímá rekonciliace. (cs)
  • Security of coherent-state quantum key distribution with homodyne or heterodyne detection through phase-insensitive amplifying channel is analyzed. Contrary to a lossy channel, the security against collective attacks is guaranteed for any ideal amplification in the channel if the direct reconciliation is applied. If there is excess noise during amplification, the threshold on the security against the collective attacks is determined. Opposite to the lossy channel, the most robust setup against the excess noise is a coherent-state key distribution with homodyne detection and direct reconciliation.
  • Security of coherent-state quantum key distribution with homodyne or heterodyne detection through phase-insensitive amplifying channel is analyzed. Contrary to a lossy channel, the security against collective attacks is guaranteed for any ideal amplification in the channel if the direct reconciliation is applied. If there is excess noise during amplification, the threshold on the security against the collective attacks is determined. Opposite to the lossy channel, the most robust setup against the excess noise is a coherent-state key distribution with homodyne detection and direct reconciliation. (en)
Title
  • Security of coherent-state key distribution through an amplifying channel
  • Security of coherent-state key distribution through an amplifying channel (en)
  • Bezpečnost kvantové kryptografie s koherentními stavy distribuovanými skrze zesilující kanál (cs)
skos:prefLabel
  • Security of coherent-state key distribution through an amplifying channel
  • Security of coherent-state key distribution through an amplifying channel (en)
  • Bezpečnost kvantové kryptografie s koherentními stavy distribuovanými skrze zesilující kanál (cs)
skos:notation
  • RIV/61989592:15310/08:00005348!RIV09-MSM-15310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GC202/07/J040), P(LC06007), Z(MSM6198959213)
http://linked.open...iv/cisloPeriodika
  • 3
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  • 394048
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  • RIV/61989592:15310/08:00005348
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http://linked.open.../riv/klicovaSlova
  • quantum cryptography (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [6179E5C07F16]
http://linked.open...i/riv/nazevZdroje
  • Physical Review A
http://linked.open...in/vavai/riv/obor
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http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 77
http://linked.open...iv/tvurceVysledku
  • Filip, Radim
http://linked.open...n/vavai/riv/zamer
issn
  • 1050-2947
number of pages
http://localhost/t...ganizacniJednotka
  • 15310
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