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Optical implementation of the encoding of two qubits to a single qutrit

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F06%3A00002600" target="_blank" >RIV/61989592:15310/06:00002600 - isvavai.cz</a>

  • Alternative codes found

    RIV/61989592:15310/06:00003380 RIV/68378271:_____/06:00047756

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Optical implementation of the encoding of two qubits to a single qutrit

  • Original language description

    We have devised an optical scheme for the recently proposed protocol for encoding two qubits into one qutrit. In this protocol, Alice encodes an arbitrary pure product state of two qubits into a state of one qutrit. Bob can then restore either of the twoencoded qubit states error-free but not both of them simultaneously. We have successfully realized this scheme experimentally using spatial-mode encoding. Each qubit (qutrit) was represented by a single photon that could propagate through two (three) separate fibers. We theoretically propose two generalizations of the original protocol. We have found a probabilistic operation that enables us to retrieve both qubits simultaneously with average fidelity above 90% and we have proposed an extension of theoriginal encoding transformation to encode N qubits into one (N+1)-dimensional system.

  • Czech name

    Optická implementace kódování dvou kvantových bitů do jednoho tritu

  • Czech description

    Bylo navrženo a experimentálně demonstrováno schéma pro kódování dvou kvantových bitů do jednoho tritu. Z tohoto tritu lze získat zpětným dekódováním jeden ze vstupních kvantových bitů, avšak ne oba současně. V experimentální realizaci bylo využito vláknové technologie a kódování do prostorových módů, kdy kvantový bit byl reprezentovaný jedním fotonem, který se současně mohl šířit ve dvou vláknech.

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

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2006

  • 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

    74

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    1

  • Pages from-to

  • UT code for WoS article

  • EID of the result in the Scopus database