Cooling the optical-spin driven limit cycle oscillations of a levitated gyroscope
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F23%3A00575367" target="_blank" >RIV/68081731:_____/23:00575367 - isvavai.cz</a>
Result on the web
<a href="https://www.nature.com/articles/s42005-023-01336-4" target="_blank" >https://www.nature.com/articles/s42005-023-01336-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s42005-023-01336-4" target="_blank" >10.1038/s42005-023-01336-4</a>
Alternative languages
Result language
angličtina
Original language name
Cooling the optical-spin driven limit cycle oscillations of a levitated gyroscope
Original language description
Birefringent microspheres, trapped in vacuum and set into rotation by circularly polarised light, demonstrate remarkably stable translational motion. This is in marked contrast to isotropic particles in similar conditions. Here we demonstrate that this stability is obtained because the fast rotation of these birefringent spheres reduces the effect of azimuthal spin forces created by the inhomogeneous optical spin of circularly polarised light. At reduced pressures, the unique profile of these rotationally averaged, effective azimuthal forces results in the formation of nano-scale limit cycles. We demonstrate feedback cooling of these non-equilibrium oscillators, resulting in effective temperatures on the order of a milliKelvin. The principles we elaborate here can inform the design of high-stability rotors carrying enhanced centripetal loads or result in more efficient cooling schemes for autonomous limit cycle oscillations. Ultimately, this latter development could provide experimental access to non-equilibrium quantum effects within the mesoscopic regime.
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/EF15_003%2F0000476" target="_blank" >EF15_003/0000476: Holographic endoscopy for in vivo applications</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
COMMUNICATIONS PHYSICS
ISSN
2399-3650
e-ISSN
2399-3650
Volume of the periodical
6
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
238
UT code for WoS article
001058778400002
EID of the result in the Scopus database
2-s2.0-85169685984