Experiments where a tiny mirror, a mechanical microresonator, within an optical cavity undergoes 'self-cooling' is detailed. Under the right, finely tuned conditions, the thermal vibration of the mirror freezes out without outside influence. It cools down by a factor of 30, from room temperature to about 10 kelvin.
- S. Gigan
- H. R. Böhm
- A. Zeilinger