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Description
  • A scheme for optimal and deterministic linear optical purification of mixed squeezed Gaussian states is proposed and experimentally demonstrated. The scheme requires only linear optical elements and homodyne detectors, and allows the balance between purification efficacy and squeezing degradation to be controlled. One particular choice of parameters gave a tenfold reduction of the thermal noise with a corresponding squeezing degradation of only 11%. We prove optimality of the protocol, and show that it can be used to enhance the performance of quantum informational protocols such as dense coding and entanglement generation.
  • A scheme for optimal and deterministic linear optical purification of mixed squeezed Gaussian states is proposed and experimentally demonstrated. The scheme requires only linear optical elements and homodyne detectors, and allows the balance between purification efficacy and squeezing degradation to be controlled. One particular choice of parameters gave a tenfold reduction of the thermal noise with a corresponding squeezing degradation of only 11%. We prove optimality of the protocol, and show that it can be used to enhance the performance of quantum informational protocols such as dense coding and entanglement generation. (en)
  • Navrhujeme a experimentálně demonstrujeme schéma pro optimální a deterministickou lineárně optickou purifikaci smíšených Gaussovských stavů. Schéma vyžaduje pouze lineárně optické elementy a homodynní detekci, a dovoluji dosáhnou kontrolované balance mezi účinností purikace a snížení stlačení. (cs)
Title
  • Squeezed-state purification with linear optics and feedforward
  • Purifikace stlačených stavů pomocí lineární optiky a dopředné korekce (cs)
  • Squeezed-state purification with linear optics and feedforward (en)
skos:prefLabel
  • Squeezed-state purification with linear optics and feedforward
  • Purifikace stlačených stavů pomocí lineární optiky a dopředné korekce (cs)
  • Squeezed-state purification with linear optics and feedforward (en)
skos:notation
  • RIV/61989592:15310/06:00002607!RIV07-GA0-15310___
http://linked.open.../vavai/riv/strany
  • 0536011-0536014
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GP202/03/D239), Z(MSM6198959213)
http://linked.open...iv/cisloPeriodika
  • 5
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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  • 501045
http://linked.open...ai/riv/idVysledku
  • RIV/61989592:15310/06:00002607
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • ELECTROOPTIC FEEDFORWARD; TELEPORTATION; SOLITONS; LIGHT; INTERFEROMETER; COMMUNICATION; AMPLIFICATION; NOISE; FIBER (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [4BC9136358D9]
http://linked.open...i/riv/nazevZdroje
  • Physical Review Letters
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
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http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 97
http://linked.open...iv/tvurceVysledku
  • Filip, Radim
  • Andersen, Ulrik
  • Leuchs, Gerd
  • Glockl, Oliver
  • Bowen, Worwic
http://linked.open...n/vavai/riv/zamer
issn
  • 0031-9007
number of pages
http://localhost/t...ganizacniJednotka
  • 15310
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