Optimal implementation of two-qubit linear-optical quantum filters
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73607245" target="_blank" >RIV/61989592:15310/21:73607245 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/pra/pdf/10.1103/PhysRevA.103.062408" target="_blank" >https://journals.aps.org/pra/pdf/10.1103/PhysRevA.103.062408</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.103.062408" target="_blank" >10.1103/PhysRevA.103.062408</a>
Alternative languages
Result language
angličtina
Original language name
Optimal implementation of two-qubit linear-optical quantum filters
Original language description
We design optimal interferometric schemes for the implementation of two-qubit linear-optical quantum filters diagonal in the computational basis. The filtering is realized by the interference of the two photons encoding the qubits in a multiport linear-optical interferometer, followed by conditioning on presence of a single photon in each output port of the filter. The filter thus operates in the coincidence basis, similarly to many linear-optical unitary quantum gates. The implementation of a filter with linear optics may require an additional overhead in terms of a reduced overall success probability of the filtering and the optimal filters are those that maximize the overall success probability. We discuss in detail the case of symmetric real filters and extend our analysis also to asymmetric and complex filters.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
<a href="/en/project/GA19-19189S" target="_blank" >GA19-19189S: Photonic simulators of quantum thermodynamic systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
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
2469-9926
e-ISSN
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Volume of the periodical
103
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
"062408-1"-"1-062408-10"
UT code for WoS article
000661121500002
EID of the result in the Scopus database
2-s2.0-85107604952