Programmable quantum measurement device that approximates all projective measurements on a qubit

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15410%2F03%3A00001351" target="_blank" >RIV/61989592:15410/03:00001351 - 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

Programmable quantum measurement device that approximates all projective measurements on a qubit

Original language description

A "universal" quantum measurement device is proposed. It can approximate any projective measurement on a qubit. The measurement basis is selected by the quantum state of a "program register". The device is optimized with respect to maximal average fidelity. A contra-intuitive result is that if two qubits in the same state are used as a program the average fidelity is higher than if the second program qubit is in the respective orthogonal state.

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

2003

Confidentiality

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

Name of the periodical

Fortschritte der Physik

ISSN

0015-8208

e-ISSN

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Volume of the periodical

51

Issue of the periodical within the volume

2-3

Country of publishing house

DE - GERMANY

Number of pages

5

Pages from-to

107-111

UT code for WoS article

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EID of the result in the Scopus database

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