High nonclassical correlations of large-bandwidth photon pairs generated in warm atomic vapor
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73602242" target="_blank" >RIV/61989592:15310/20:73602242 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1361-6455/ab8717/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-6455/ab8717/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-6455/ab8717" target="_blank" >10.1088/1361-6455/ab8717</a>
Alternative languages
Result language
angličtina
Original language name
High nonclassical correlations of large-bandwidth photon pairs generated in warm atomic vapor
Original language description
Generation of nonclassical light suitable for interaction with atoms corresponds to a crucial goal pursued across the broad quantum optics community. We present the generation of nonclassical photon pairs using the process of spontaneous four-wave mixing in warm atomic vapor with an unprecedentedly high degree of nonclassical photon correlations. We show how the unique combination of excitation of atoms in the proximity of the vapor cell viewport, single excitation laser beam, double-? energy level scheme, auxiliary optical pumping, and particular optical filtering setups, allow for the spectral bandwidth of generated nonclassical light fields of up to 560 +/- 20 MHz and low two-photon noise. We provide a quantitative analysis of particular noise mechanisms which set technological and fundamental limits on the observable photon correlations. The overall technological simplicity of the presented scheme together with the availability of spectrally matched quantum memories implementable with warm atomic vapors promises the feasibility of realization of GHz bandwidth on-demand nonclassical light sources and efficient quantum communication nodes.
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/GA19-14988S" target="_blank" >GA19-14988S: Coherently programmable source of nonclassical light</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
ISSN
0953-4075
e-ISSN
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Volume of the periodical
53
Issue of the periodical within the volume
14
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
"145501-1"-"145501-8"
UT code for WoS article
000541826900001
EID of the result in the Scopus database
2-s2.0-85086987171