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Resolved-Sideband Cooling of a Levitated Nanoparticle in the Presence of Laser Phase Noise.

08:00 EDT 11th October 2019 | BioPortfolio

Summary of "Resolved-Sideband Cooling of a Levitated Nanoparticle in the Presence of Laser Phase Noise."

We investigate the influence of laser phase noise heating on resolved sideband cooling in the context of cooling the center-of-mass motion of a levitated nanoparticle in a high-finesse cavity. Although phase noise heating is not a fundamental physical constraint, the regime where it becomes the main limitation in Levitodynamics has so far been unexplored and hence embodies from this point forward the main obstacle in reaching the motional ground state of levitated mesoscopic objects with resolved sideband cooling. We reach minimal center-of-mass temperatures comparable to T_{min}=10  mK at a pressure of p=3×10^{-7}  mbar, solely limited by phase noise. Finally we present possible strategies towards motional ground state cooling in the presence of phase noise.

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This article was published in the following journal.

Name: Physical review letters
ISSN: 1079-7114
Pages: 153601

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