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Description
  • Byla provedena úplná experimentální charakterizace kvantových komunikačních kanálů pro spojité kvantové proměnné. Tyto teleportační kanály jsou tvořeny sdíleným kvantově provázaným stavem, lokálními kvantovými operacemi a klasickou komunikací. Byly změřeny všechny elementy kovarianční matice sdíleného stlačeného stavu. Z těchto dat byla stanovena kapacita kanálu, fidelita teleportace koherentních stavů a logaritmická negativita a čistota sdíleného stavu. (cs)
  • We present a full experimental characterization of continuous-variable quantum-communication channels established by shared entanglement together with local operations and classical communication. The resulting teleportation channel was fully characterized by measuring all elements of the covariance matrix of the shared two-mode squeezed Gaussian state. From the experimental data we determined the lower bound to the quantum channel capacity, the teleportation fidelity of coherent states, and the logarithmic negativity and purity of the shared state. Additionally, a positive secret key rate was obtained for two of the established channels
  • We present a full experimental characterization of continuous-variable quantum-communication channels established by shared entanglement together with local operations and classical communication. The resulting teleportation channel was fully characterized by measuring all elements of the covariance matrix of the shared two-mode squeezed Gaussian state. From the experimental data we determined the lower bound to the quantum channel capacity, the teleportation fidelity of coherent states, and the logarithmic negativity and purity of the shared state. Additionally, a positive secret key rate was obtained for two of the established channels (en)
Title
  • Experimental characterization of Gaussian quantum-communication channels
  • Experimentální charakterizace Gaussovských kvantových komunikačních kanálů (cs)
  • Experimental characterization of Gaussian quantum-communication channels (en)
skos:prefLabel
  • Experimental characterization of Gaussian quantum-communication channels
  • Experimentální charakterizace Gaussovských kvantových komunikačních kanálů (cs)
  • Experimental characterization of Gaussian quantum-communication channels (en)
skos:notation
  • RIV/61989592:15310/07:00004723!RIV08-MSM-15310___
http://linked.open.../vavai/riv/strany
  • 012323(9)
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(LC06007), Z(MSM6198959213)
http://linked.open...iv/cisloPeriodika
  • 1
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
  • 421129
http://linked.open...ai/riv/idVysledku
  • RIV/61989592:15310/07:00004723
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Gaussian coherent states; continuous quantum variables (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [6FDCA04793B1]
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
  • 76
http://linked.open...iv/tvurceVysledku
  • Fiurášek, Jaromír
  • Schnabel, Roman
  • Diguglielmo, James
  • Franzen, Alexander
  • Hage, Boris
http://linked.open...n/vavai/riv/zamer
issn
  • 1050-2947
number of pages
http://localhost/t...ganizacniJednotka
  • 15310
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