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Description
  • We propose a %22programmable%22 quantum device that is able to perform a specific generalized measurement from a certain set of measurements depending on a quantum state of a %22program register.%22 In particular, we study a situation when the programmable measurement device serves for the unambiguous discrimination between nonrthogonal states. The particular pair of states that can be unambiguously discriminated is specified by the state of a program qubit. The probability of successful discrimination is not optimal for all admissible pairs. However, for some subsets it can be very close to the optimal value.
  • We propose a %22programmable%22 quantum device that is able to perform a specific generalized measurement from a certain set of measurements depending on a quantum state of a %22program register.%22 In particular, we study a situation when the programmable measurement device serves for the unambiguous discrimination between nonrthogonal states. The particular pair of states that can be unambiguously discriminated is specified by the state of a program qubit. The probability of successful discrimination is not optimal for all admissible pairs. However, for some subsets it can be very close to the optimal value. (en)
Title
  • Quantum-controlled measurement device for quantum-state discrimination
  • Quantum-controlled measurement device for quantum-state discrimination (en)
skos:prefLabel
  • Quantum-controlled measurement device for quantum-state discrimination
  • Quantum-controlled measurement device for quantum-state discrimination (en)
skos:notation
  • RIV/61989592:15310/02:00001457!RIV/2003/MSM/153103/N
http://linked.open.../vavai/riv/strany
  • 022112-1-022112-5
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(LN00A015)
http://linked.open...iv/cisloPeriodika
  • 2
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
  • 661337
http://linked.open...ai/riv/idVysledku
  • RIV/61989592:15310/02:00001457
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • quantum measurement; quantum information; quantum theory (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [C7E270B9C77D]
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
  • Dušek, Miloslav
  • Bužek, Vladimír
issn
  • 1050-2947
number of pages
http://localhost/t...ganizacniJednotka
  • 15310
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