Experimental demonstration of optimal probabilistic enhancement of quantum coherence
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73607405" target="_blank" >RIV/61989592:15310/21:73607405 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/2058-9565/ac10ef" target="_blank" >https://iopscience.iop.org/article/10.1088/2058-9565/ac10ef</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/2058-9565/ac10ef" target="_blank" >10.1088/2058-9565/ac10ef</a>
Alternative languages
Result language
angličtina
Original language name
Experimental demonstration of optimal probabilistic enhancement of quantum coherence
Original language description
We theoretically and experimentally investigate conditional enhancement of overall coherence of quantum states by probabilistic quantum operations that apply to the input state a quantum filter diagonal in the basis of incoherent states. We identify the optimal filters that for a given probability of successful filtering maximize the output coherence. We verify the performance of the studied quantum filters in a proof-of-principle experiment with linear optics, where a pair of two-level quantum systems is represented by polarization states of two photons. We comprehensively characterize the implemented two-qubit linear optical quantum filters by full quantum process tomography and we experimentally observe the optimal quantum coherence enhancement by quantum filtering.
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
Quantum Science and Technology
ISSN
2058-9565
e-ISSN
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Volume of the periodical
6
Issue of the periodical within the volume
4
Country of publishing house
GB - UNITED KINGDOM
Number of pages
13
Pages from-to
"045010-1"-"045010-13"
UT code for WoS article
000675211600001
EID of the result in the Scopus database
2-s2.0-85112747135