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Description
  • We show that the method of maximum likelihood (MML) provides us with an efficient scheme for the reconstruction of quantum channels from incomplete measurement data. By construction this scheme always results in estimations of channels that are completely positive. Using this property we use the MML for a derivation of physical approximations of unphysical operations. In particular, we analyze the optimal approximation of the universal NOT gate as well as the physical approximation of a quantum nonlinear polarization rotation.
  • We show that the method of maximum likelihood (MML) provides us with an efficient scheme for the reconstruction of quantum channels from incomplete measurement data. By construction this scheme always results in estimations of channels that are completely positive. Using this property we use the MML for a derivation of physical approximations of unphysical operations. In particular, we analyze the optimal approximation of the universal NOT gate as well as the physical approximation of a quantum nonlinear polarization rotation. (en)
Title
  • Process reconstruction: From unphysical to physical maps via maximum likelihood
  • Process reconstruction: From unphysical to physical maps via maximum likelihood (en)
skos:prefLabel
  • Process reconstruction: From unphysical to physical maps via maximum likelihood
  • Process reconstruction: From unphysical to physical maps via maximum likelihood (en)
skos:notation
  • RIV/00216224:14330/05:00013058!RIV10-GA0-14330___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA201/04/1153), Z(MSM0021622419)
http://linked.open...iv/cisloPeriodika
  • No. 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
  • 538966
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14330/05:00013058
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • quantum process reconstruction (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [8FC4BB0A2592]
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
  • Vol. 72
http://linked.open...iv/tvurceVysledku
  • Bužek, Vladimír
  • Ziman, Mário
  • Plesch, Martin
  • Štelmachovič, Peter
http://linked.open...ain/vavai/riv/wos
  • 000231564200025
http://linked.open...n/vavai/riv/zamer
issn
  • 1050-2947
number of pages
http://localhost/t...ganizacniJednotka
  • 14330
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