Self-Excitation and Feedback Cooling of an Isolated Proton
arXiv:1002.0868 · doi:10.1103/PhysRevLett.104.143001
Abstract
The first one-proton self-excited oscillator (SEO) and one-proton feedback cooling are demonstrated. In a Penning trap with a large magnetic gradient, the SEO frequency is resolved to the high precision needed to detect a one-proton spin flip. This is after undamped magnetron motion is sideband-cooled to a 14 mK theoretical limit, and despite random frequency shifts (larger than those from a spin flip) that take place every time sideband cooling is applied in the gradient. The observations open a possible path towards a million-fold improved comparison of the antiproton and proton magnetic moments.
References in corpus (1)
Cited by in corpus (6)
- Cavity Control of a Single-Electron Quantum Cyclotron:\\Measuring the Electron Magnetic Moment
- Observation of Spin Flips with a Single Trapped Proton
- First-order perturbative calculation of the frequency-shifts caused by static cylindrically-symmetric electric and magnetic imperfections of a Penning trap
- Direct Measurement of the Proton Magnetic Moment
- Levitated electromechanics: all-electrical cooling of charged nano- and micro-particles
- Resolving an Individual One-Proton Spin Flip to Determine a Proton Spin State