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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

  • Czech description

Classification

  • 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)

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