Pure single photons from a trapped atom source
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F16%3A33159907" target="_blank" >RIV/61989592:15310/16:33159907 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/article/10.1088/1367-2630/18/9/093038/pdf" target="_blank" >http://iopscience.iop.org/article/10.1088/1367-2630/18/9/093038/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1367-2630/18/9/093038" target="_blank" >10.1088/1367-2630/18/9/093038</a>
Alternative languages
Result language
angličtina
Original language name
Pure single photons from a trapped atom source
Original language description
Single atoms or atom-like emitters are the purest source of single photons, they are intrinsically incapable of multi-photon emission. To demonstrate this degree of photon number-state purity we have realized a single-photon source using a single ion trapped at the common focus of high numerical aperture lenses. Our trapped-ion source produces single-photon pulses with g(2)(0)=(1.9 +/- 0.2) x 10(-3) without any background subtraction. After subtracting detector dark counts the residual g(2) (0) is less than 3 x 10(-4) (95% confidence interval). The multi-photon component of the source light field is low enough that we measure violation of a quantum non-Gaussian state witness, by this characterization the source output is indistinguishable from ideal attenuated single photons. In combination with efforts to enhance collection efficiency from single emitters, our results suggest that single trapped ions are not only ideal stationary qubits for quantum information processing, but promising sources of light for scalable optical quantum networks.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BH - Optics, masers and lasers
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GB14-36681G" target="_blank" >GB14-36681G: Center of Excellence for Classical and Quantum Interactions in Nanoworld</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
New Journal of Physics
ISSN
1367-2630
e-ISSN
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Volume of the periodical
18
Issue of the periodical within the volume
SEP
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
"093038-1"-"093038-8"
UT code for WoS article
000385516400007
EID of the result in the Scopus database
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