Extraction of autonomous quantum coherences
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F22%3A73612911" target="_blank" >RIV/61989592:15310/22:73612911 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/22:10443952
Result on the web
<a href="https://quantum-journal.org/papers/q-2022-04-15-689/pdf/" target="_blank" >https://quantum-journal.org/papers/q-2022-04-15-689/pdf/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22331/q-2022-04-15-689" target="_blank" >10.22331/q-2022-04-15-689</a>
Alternative languages
Result language
angličtina
Original language name
Extraction of autonomous quantum coherences
Original language description
Quantum coherence is an essential resource to gain advantage over classical physics and technology. Recently, it has been proposed that a low-temperature environment can induce quantum coherence of a spin without an external coherent pump. We address a critical question if such coherence is extractable by a weak coupling to an output system dynamically affecting back the spin-environment coupling. Describing the entire mechanism, we prove that such extraction is generically possible for output spins (also oscillators or fields) and, as well, in a fermionic analogue of such a process. We compare the internal spin coherence and output coherence over temperature and characteristic frequencies. The proposed optimal coherence extraction opens paths for the upcoming experimental tests with atomic and solid-state systems.
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Quantum
ISSN
2521-327X
e-ISSN
2521-327X
Volume of the periodical
6
Issue of the periodical within the volume
APR
Country of publishing house
AT - AUSTRIA
Number of pages
45
Pages from-to
"689-1"-"689-45"
UT code for WoS article
000789082900001
EID of the result in the Scopus database
2-s2.0-85129912821