Abstract
Detector backaction can be completely evaded when the state of a one-electron quantum cyclotron is detected, but it nonetheless significantly broadens the quantum-jump resonance line shapes from which the cyclotron frequency can be deduced. This limits the accuracy with which the electron magnetic moment can be determined to test the standard model's most precise prediction. A steady-state solution to a master equation, the first quantum calculation for the open quantum cyclotron system, illustrates a method to circumvent the detection backaction upon the measured frequency.
| Original language | English (US) |
|---|---|
| Article number | 070402 |
| Journal | Physical review letters |
| Volume | 126 |
| Issue number | 7 |
| DOIs | |
| State | Published - Feb 18 2021 |
Funding
This work was supported by the NSF, with partial support of X. F. from the Masason Foundation. B. D’Urso made early contributions. B. D’Urso, S. E. Fayer, T. G. Myers, B. A. D. Sukra, and G. Nahal provided useful comments.
ASJC Scopus subject areas
- General Physics and Astronomy