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Experimental realization of a programmable quantum-state discriminator and a phase-covariant quantum multimeter

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F04%3A00002389" target="_blank" >RIV/61989592:15310/04:00002389 - isvavai.cz</a>

  • Alternative codes found

    RIV/68378271:_____/04:00102454

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Experimental realization of a programmable quantum-state discriminator and a phase-covariant quantum multimeter

  • Original language description

    We present an optical implementation of two programmable quantum measurement devices. The first one serves for unambiguous discrimination of two nonorthogonal states of a qubit. The particular pair of states to be discriminated is specified by the quantum state of a program qubit. The second device can perform von Neumann measurements on a single qubit in any basis located on the equator of the Bloch sphere. Again, the basis is selected by the state of a program qubit. In both cases the data and programqubits are represented by polarization states of photons. The experimental apparatus exploits the fact that two Bell states can be distinguished solely by means of linear optics. The outcome corresponding to the remaining two Bell states represents an inconclusive result.

  • Czech name

    Experimentální realizace programovatelného diskriminátoru kvantových stavů a fázově kovariantního kvantového multimetru

  • Czech description

    Představujeme optickou sestavu těchto dvou programovatelných kvantových měřících zařízení. První sestava slouží pro jednoznačné rozlišení dvou neortogonálních stavů kvantového bitu. To, které dva stavy se mají rozlišit je určeno kvantovým stavem programového bitu. Druhá sestava může provádět von Nemannovo měření na jednom kvantovém bitu v jakékoliv bázi na rovníku Blochovy sféry.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BH - Optics, masers and lasers

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/LN00A015" target="_blank" >LN00A015: Research center for optics</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physical Review A

  • ISSN

    1050-2947

  • e-ISSN

  • Volume of the periodical

    69

  • Issue of the periodical within the volume

    5

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    7

  • Pages from-to

  • UT code for WoS article

  • EID of the result in the Scopus database