Single-particle self-excited oscillator

B. D'Urso, R. Van Handel, B. Odom, D. Hanneke, G. Gabrielse

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


Electronic feedback is used to self-excite the axial oscillation of a single electron in a Penning trap. Large, stable, easily detected oscillations arise even in an anharmonic potential. Amplitudes are controlled by adjusting the feedback gain, and frequencies can be made nearly independent of amplitude fluctuations. Quantum jump spectroscopy of a perpendicular cyclotron motion reveals the absolute temperature and amplitude of the self-excited oscillation. The possibility to quickly measure parts per billion frequency shifts could open the way to improved measurements of e-, e+, p, and ̄p magnetic moments.

Original languageEnglish (US)
Article number113002
JournalPhysical review letters
Issue number11
StatePublished - Mar 25 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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