Original title: Analysis of linear ion Paul traps using 3-D FEM and the azimuthal multipole expansion
Authors: Oral, Martin ; Číp, Ondřej ; Slodička, L.
Document type: Papers
Conference/Event: Recent Trends in Charged Particle Optics and Surface Physics Instrumentation, Skalský dvůr (CZ), 20180604
Year: 2018
Language: eng
Abstract: Radiofrequency (RF) Paul traps are valuable in the design and in the operation of highly stable\noptical atomic clocks based on suitable trapped ions. The traditional setup involves a single\nion in an RF trap irradiated with a laser beam. The frequency of the laser light is then fine-tuned to match that of photons coming from an electronic transition in the atomic shell. The\nachievable frequency stability is about 10-17 for laser-cooled ions. However, the stability can be\nfurther improved by using heavy atoms (such as Thorium) and the more stable frequencies of\ntheir nuclear transitions, and by setting up so-called Coulomb crystals, to improve the frequency measurement statistics by increasing the number of reference atoms. These techniques and their combination could reach relative stabilities beyond 10-20.
Keywords: atomic clock; electric RF fields; finite element method; ion trajectories; linear ion traps; multipole field expansion; particle tracing; simulation of electrostatic fields
Project no.: GB14-36681G (CEP)
Funding provider: GA ČR
Host item entry: Recent Trends in Charged Particle Optics and Surface Physics Instrumentation. Proceedings of the 16th International Seminar, ISBN 978-80-87441-23-7

Institution: Institute of Scientific Instruments AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0287623

Permalink: http://www.nusl.cz/ntk/nusl-387507


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Research > Institutes ASCR > Institute of Scientific Instruments
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