REVIEW 4 cited by
High-purity quantum optomechanics at room temperature
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
read the original abstract
Exploiting quantum effects of mechanical motion, such as backaction evading measurements or squeezing, requires preparation of the oscillator in a high-purity state. The largest state purities in optomechanics to date have relied on cryogenic cooling, combined with coupling to electromagnetic resonators driven with a coherent radiation field. In this work, we cool the mega-hertz-frequency librational mode of an optically levitated silica nanoparticle from room temperature to its quantum ground state. Cooling is realized by coherent scattering into a Fabry-Perot cavity. We use sideband thermometry to infer a phonon population of 0.04 quanta under optimal conditions, corresponding to a state purity of 92%. The purity reached by our room-temperature experiment exceeds the performance offered by mechanically clamped oscillators in a cryogenic environment. Our work establishes a platform for high-purity quantum optomechanics at room temperature.
Forward citations
Cited by 4 Pith papers
-
Trap-to-trap free falls with an optically levitated nanoparticle
An optically levitated silica nanoparticle was released, fell freely for up to 0.25 ms under gravity, was recaptured by a second optical tweezer, and showed an approximately 190-fold growth in position uncertainty.
-
Cooling of an optically levitated nanoparticle via measurement-free coherent feedback
Coherent, measurement-free optical feedback cools a levitated nanoparticle to about 344 phonons, with phase noise identified as the main barrier to ground-state cooling.
-
Optical centrifuge for nanoparticles
A chirped rotating polarization in an optical tweezer can, according to theory and simulation, accelerate levitated anisotropic nanoparticles to rotation frequencies above 100 MHz.
-
Roto-translational optomechanics
A comprehensive review of the coupled rotational and translational motion of levitated nanoparticles, with a classical-to-quantum theoretical framework and a survey of experiments and applications.
Discussion (0). Sign in to comment.