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Description
  • We study the Braunstein-Kimble setup for teleportation of a quantum state of a single mode of an optical field. We assume that the sender and receiver share a two-mode. Gaussian state and we identify optimum local Gaussian operations that maximize the teleportation fidelity. We consider the fidelity of teleportation of pure Gaussian states and we also introduce the fidelity of the teleportation transformation. We show in an explicit example that in some cases the optimum local operation is not a simple unitary symplectic transformation but some more general completely positive map.
  • We study the Braunstein-Kimble setup for teleportation of a quantum state of a single mode of an optical field. We assume that the sender and receiver share a two-mode. Gaussian state and we identify optimum local Gaussian operations that maximize the teleportation fidelity. We consider the fidelity of teleportation of pure Gaussian states and we also introduce the fidelity of the teleportation transformation. We show in an explicit example that in some cases the optimum local operation is not a simple unitary symplectic transformation but some more general completely positive map. (en)
Title
  • Improving the fidelity of continuous-variable teleportation via local operations
  • Improving the fidelity of continuous-variable teleportation via local operations (en)
skos:prefLabel
  • Improving the fidelity of continuous-variable teleportation via local operations
  • Improving the fidelity of continuous-variable teleportation via local operations (en)
skos:notation
  • RIV/61989592:15310/02:00001487!RIV/2003/MSM/153103/N
http://linked.open.../vavai/riv/strany
  • 012304-1-8
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(LN00A015), Z(MSM 153100009)
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
  • 648591
http://linked.open...ai/riv/idVysledku
  • RIV/61989592:15310/02:00001487
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • fidelity (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [D997BCD46A45]
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...ocetUcastnikuAkce
http://linked.open...nichUcastnikuAkce
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 66
http://linked.open...iv/tvurceVysledku
  • Fiurášek, Jaromír
  • Peřina, Jan
http://linked.open...n/vavai/riv/zamer
issn
  • 1050-2947
number of pages
http://localhost/t...ganizacniJednotka
  • 15310
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