Dynamics of noise-induced heating in atom traps


Journal Article

A Fokker-Planck equation is derived for the energy distribution of atoms in a three-dimensional harmonic trap with fluctuations in the spring constant and the equilibrium position. Using this model, we predict trap lifetimes based on the measurable noise spectra of the fluctuations. The energy distributions evolve into a single eigenmode where the apparent temperature of the distribution remains constant while the population decays as a consequence of the energy input. The method of analysis and the corresponding results are applicable to any optical, magnetic, or ion trap that is approximately harmonic, and offer useful insights into both noise-induced and optical heating processes. © 1998 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Gehm, ME; O’Hara, KM; Savard, TA; Thomas, JE

Published Date

  • January 1, 1998

Published In

Volume / Issue

  • 58 / 5

Start / End Page

  • 3914 - 3921

Electronic International Standard Serial Number (EISSN)

  • 1094-1622

International Standard Serial Number (ISSN)

  • 1050-2947

Digital Object Identifier (DOI)

  • 10.1103/PhysRevA.58.3914

Citation Source

  • Scopus