A Caltech Library Service

Single-Particle Self-Excited Oscillator

D'Urso, B. and van Handel, R. and Odom, B. and Hanneke, D. and Gabrielse, G. (2005) Single-Particle Self-Excited Oscillator. Physical Review Letters, 94 (11). Art. No. 113002. ISSN 0031-9007.

See Usage Policy.


Use this Persistent URL to link to this item:


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 [overline p] magnetic moments.

Item Type:Article
Additional Information:©2005 The American Physical Society (Received 10 August 2004; published 23 March 2005) We are grateful for wonderful electronics support from J. MacArthur and for lab assistance from A. Steinert and O. Elliott. This work was supported by the NSF. B.D. was also supported by the Fannie and John Hertz Foundation, and D. H. by the ARO.
Subject Keywords:particle traps; oscillators; feedback; elementary particle magnetic moment; radiation pressure
Record Number:CaltechAUTHORS:DURprl05
Persistent URL:
Alternative URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8424
Deposited By: Archive Administrator
Deposited On:03 Aug 2007
Last Modified:18 Sep 2014 18:11

Repository Staff Only: item control page