Driven One-Particle Quantum Cyclotron
- URL: http://arxiv.org/abs/2008.08188v2
- Date: Fri, 22 Jan 2021 18:11:32 GMT
- Title: Driven One-Particle Quantum Cyclotron
- Authors: Xing Fan, Gerald Gabrielse
- Abstract summary: A quantum cyclotron occupies only its lowest cyclotron and spin states.
The predicted rate of cyclotron and spin quantum jumps as a function of drive frequency.
Ten times more precise electron magnetic moment measurement is possible.
- Score: 5.419077350924331
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: A quantum cyclotron is one trapped electron or positron that occupies only
its lowest cyclotron and spin states. A master equation is solved for a driven
quantum cyclotron with a QND (quantum nondemolition) coupling to a detection
oscillator in thermal equilibrium - the first quantum calculation for this
coupled and open system. The predicted rate of cyclotron and spin quantum jumps
as a function of drive frequency, for a small coupling between the detection
motion and its thermal reservoir, differs sharply from what has been predicted
and used for past measurements. The calculation suggests a ten times more
precise electron magnetic moment measurement is possible, as needed to
investigate current differences between the most precise prediction of the
standard model of particle physics, and the most accurate measurement of a
property of an elementary particle.
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