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  • We propose quantum devices that can realize probabilistically different projective measurements on a qubit. The desired measurement basis is selected by the quantum state of a program register. First we analyze the phase-covariant multimeters for a large class of program states and then the universal multimeters for a special choice of program. In both cases we start with deterministic but error-prone devices and then proceed to devices that never make a mistake but from time to time give an inconclusive result. These multimeters are optimized (for a given type of program) with respect to the minimum probability of an inconclusive result. This concept is further generalized to multimeters that minimize the error rate for a given probability of an inconclusive result (or vice versa). Finally, we propose a generalization for qudits.
  • We propose quantum devices that can realize probabilistically different projective measurements on a qubit. The desired measurement basis is selected by the quantum state of a program register. First we analyze the phase-covariant multimeters for a large class of program states and then the universal multimeters for a special choice of program. In both cases we start with deterministic but error-prone devices and then proceed to devices that never make a mistake but from time to time give an inconclusive result. These multimeters are optimized (for a given type of program) with respect to the minimum probability of an inconclusive result. This concept is further generalized to multimeters that minimize the error rate for a given probability of an inconclusive result (or vice versa). Finally, we propose a generalization for qudits. (en)
  • V článku nevrhujeme pravděpodobnostní kvantové multimetry. (cs)
Title
  • Pravděpodobnostní kvantové multimetry (cs)
  • Probabilistic quantum multimeters
  • Probabilistic quantum multimeters (en)
skos:prefLabel
  • Pravděpodobnostní kvantové multimetry (cs)
  • Probabilistic quantum multimeters
  • Probabilistic quantum multimeters (en)
skos:notation
  • RIV/61989592:15310/04:00002368!RIV/2005/MSM/153105/N
http://linked.open.../vavai/riv/strany
  • 032302-1-13
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(LN00A015)
http://linked.open...iv/cisloPeriodika
  • 3
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
  • 582109
http://linked.open...ai/riv/idVysledku
  • RIV/61989592:15310/04:00002368
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • quantum multimeters (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [D0FA35D12CA2]
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
  • 69
http://linked.open...iv/tvurceVysledku
  • Fiurášek, Jaromír
  • Dušek, Miloslav
issn
  • 1050-2947
number of pages
http://localhost/t...ganizacniJednotka
  • 15310
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