Higher pole linear traps for atomic clock applications

Author

Prestage, John D. ; Tjoelker, Robert L. ; Maleki, Lute

Author_Institution

Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA

Volume

1

fYear

1999

fDate

1999

Firstpage

121

Abstract

We investigate experimentally and theoretically higher pole linear ion traps for frequency standard use. We have built a 12-pole trap and have successfully loaded ions into it from a linear quadrupole trap. By solving the Boltzmann equation describing large ion clouds where space charge interactions are important we show that clock frequency changes due to ion number fluctuations are much smaller in ion clocks based multipole traps than comparable clocks based on quadrupole linear traps

Keywords

Boltzmann equation; atomic clocks; fluctuations; frequency standards; mercury (metal); particle traps; positive ions; quantum optics; space charge; trapped ions; 12-pole trap; Boltzmann equation; Hg; atomic clock applications; clock frequency changes; comparable clocks; frequency standard; higher pole linear traps; ion clocks based multipole traps; ion clouds; ion number fluctuations; linear ion traps; linear quadrupole traps; quadrupole linear traps; space charge interactions; Atom optics; Atomic clocks; Charge carrier processes; Clouds; Doppler shift; Electron traps; Frequency; Optical buffering; Particle beam optics; Space charge;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European

Conference_Location

Besancon

ISSN

1075-6787

Print_ISBN

0-7803-5400-1

Type

conf

DOI

10.1109/FREQ.1999.840723

Filename

840723