Sub-0.1 degree phase locking of a single-photon interferometer

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F23%3A73618893" target="_blank" >RIV/61989592:15310/23:73618893 - isvavai.cz</a>
Result on the web
<a href="https://opg.optica.org/oe/fulltext.cfm?uri=oe-31-8-12562&id=528738" target="_blank" >https://opg.optica.org/oe/fulltext.cfm?uri=oe-31-8-12562&id=528738</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OE.480569" target="_blank" >10.1364/OE.480569</a>

Result language
angličtina
Original language name
Sub-0.1 degree phase locking of a single-photon interferometer
Original language description
We report a single-photon Mach-Zehnder interferometer stabilized to a phase precision of 0.05 degrees over 15 hours. To lock the phase, we employ an auxiliary reference light at a different wavelength than the quantum signal. The developed phase locking operates continuously, with negligible crosstalk, and for an arbitrary phase of the quantum signal. Moreover, its performance is independent of intensity fluctuations of the reference. Since the presented method can be used in a vast majority of quantum interferometric networks it can significantly improve phase-sensitive applications in quantum communication and quantum metrology.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

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)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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