About: Completely Positive Covariant two-Qubit Quantum Processes and Optimal Quantum NOT Operations for Entangled Qubit Pairs     Goto   Sponge   NotDistinct   Permalink

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  • The structure is investigated of all completely positive quantum operations that transform pure two-qubit input states of a given degree of entanglement in a covariant way. Special cases thereof are quantum NOT operations which transform entangled pure two-qubit input states of a given degree of entanglement into orthogonal states in an optimal way. Based on our general analysis all covariant optimal two-qubit quantum NOT operations are determined. In particular, it is demonstrated that only in the case of maximally entangled input states can these quantum NOT operations be performed perfectly.
  • The structure is investigated of all completely positive quantum operations that transform pure two-qubit input states of a given degree of entanglement in a covariant way. Special cases thereof are quantum NOT operations which transform entangled pure two-qubit input states of a given degree of entanglement into orthogonal states in an optimal way. Based on our general analysis all covariant optimal two-qubit quantum NOT operations are determined. In particular, it is demonstrated that only in the case of maximally entangled input states can these quantum NOT operations be performed perfectly. (en)
  • Studujeme strukturu vsech uplne pozitivnich kvantovych operaci ktere prevadeji vstupni stav s danym provazanim na vystupni stav kovariantnim zpusobem. Specialnim pripadem takoveho zabrazeni je kvantova NOT operace, ktera transformuje optimalne provazany dvou qubitovy stav na jeho ortogonalni komplement. Na zaklade obecne analyzy procesu je podana uplna klasifikace NOT operaci a je ukazano, ze naprosto verna muze byt NOT operace jenom pro maximalne provazane stavy. (cs)
Title
  • Completely Positive Covariant two-Qubit Quantum Processes and Optimal Quantum NOT Operations for Entangled Qubit Pairs
  • Zcela positvní kovariantní 2-qubitové kvantové procesy and optimální kvantové NOT operace for entanglované páry qubitů (cs)
  • Completely Positive Covariant two-Qubit Quantum Processes and Optimal Quantum NOT Operations for Entangled Qubit Pairs (en)
skos:prefLabel
  • Completely Positive Covariant two-Qubit Quantum Processes and Optimal Quantum NOT Operations for Entangled Qubit Pairs
  • Zcela positvní kovariantní 2-qubitové kvantové procesy and optimální kvantové NOT operace for entanglované páry qubitů (cs)
  • Completely Positive Covariant two-Qubit Quantum Processes and Optimal Quantum NOT Operations for Entangled Qubit Pairs (en)
skos:notation
  • RIV/68407700:21340/06:04121607!RIV07-GA0-21340___
http://linked.open.../vavai/riv/strany
  • 062311;062311
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA202/04/2101), P(LC06002)
http://linked.open...iv/cisloPeriodika
  • 0
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
  • 469380
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21340/06:04121607
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • maps; optimal cloning; pure states (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [6280DA533E0D]
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
  • 73
http://linked.open...iv/tvurceVysledku
  • Alber, G.
  • Jex, Igor
  • Novotný, Jaroslav
issn
  • 1050-2947
number of pages
http://localhost/t...ganizacniJednotka
  • 21340
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