Efficient characterization of N-beam Gaussian fields through photon-number measurements: Quantum universal invariants
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00636757" target="_blank" >RIV/68378271:_____/25:00636757 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/25:73631437
Result on the web
<a href="https://hdl.handle.net/11104/0367721" target="_blank" >https://hdl.handle.net/11104/0367721</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/5hnr-6jbf" target="_blank" >10.1103/5hnr-6jbf</a>
Alternative languages
Result language
angličtina
Original language name
Efficient characterization of N-beam Gaussian fields through photon-number measurements: Quantum universal invariants
Original language description
Quantum universal invariants of general N-beam Gaussian fields are investigated from the point of view of fields' intensity moments. A method that uniquely links these invariants, including the global and marginal fields' purities, to intensity moments is suggested. Determination of these invariants identifies the Gaussian states including their quantum correlations. In particular, the Peres-Horodecki separability criterion is reformulated in terms of quantum universal invariants, and consequently in terms of experimental intensity moments, offering a practical tool for determining the entanglement or separability of these states. The approach is experimentally demonstrated by determining the invariants of noisy symmetric three-beam Gaussian states using photon-number resolved measurements. Furthermore, their entanglement properties are analyzed and characterized.
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/EH23_021%2F0008790" target="_blank" >EH23_021/0008790: Optical technologies</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
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 Research
ISSN
2643-1564
e-ISSN
2643-1564
Volume of the periodical
7
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
023278
UT code for WoS article
001513834700005
EID of the result in the Scopus database
2-s2.0-105023192086