Sub-Kelvin Parametric Feedback Cooling of a Laser-Trapped Nanoparticle

Details Sub-Kelvin Parametric Feedback Cooling of a Laser-Trapped Nanoparticle Sub-Kelvin Parametric Feedback Cooling of a Laser-Trapped Nanoparticle

2012-02-29

arxiv.org/abs/1202.6435v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

Recent experiments have demonstrated the ability to optically cool a macroscopic mechanical oscillator to its quantum ground state by means of dynamic backaction. Such experiments allow quantum mechanics to be tested with mesoscopic objects, and represent an essential step toward quantum optical memories, transducers, and amplifiers. Most oscillators considered so far are rigidly connected to their thermal environment, fundamentally limiting their mechanical Q-factors and requiring cryogenic precooling to liquid helium temperatures. Here we demonstrate parametric feedback cooling of a laser-trapped nanoparticle which is entirely isolated from the thermal bath. The lack of a clamping mechanism provides robust decoupling from internal vibrations and makes it possible to cool the nanoparticle in all degrees of freedom by means of a single laser beam. Compared to laser-trapped microspheres, nanoparticles have the advantage of higher resonance frequencies and lower recoil heating, which are favorable conditions for quantum ground state cooling

Affiliated with

Also associated with

No associations

Rating

Sub-Kelvin Parametric Feedback Cooling of a Laser-Trapped Nanoparticle does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Sub-Kelvin Parametric Feedback Cooling of a Laser-Trapped Nanoparticle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sub-Kelvin Parametric Feedback Cooling of a Laser-Trapped Nanoparticle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-523455