Quantum-controlled measurement device for quantum-state discrimination

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F02%3A00001457" target="_blank" >RIV/61989592:15310/02:00001457 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Quantum-controlled measurement device for quantum-state discrimination

Original language description

We propose a "programmable" quantum device that is able to perform a specific generalized measurement from a certain set of measurements depending on a quantum state of a "program register." In particular, we study a situation when the programmable measurement device serves for the unambiguous discrimination between nonrthogonal states. The particular pair of states that can be unambiguously discriminated is specified by the state of a program qubit. The probability of successful discrimination is not optimal for all admissible pairs. However, for some subsets it can be very close to the optimal value.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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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)

Publication year

2002

Confidentiality

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

Name of the periodical

Physical Review A

ISSN

1050-2947

e-ISSN

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Volume of the periodical

66

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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