Název:
Analysis of linear ion Paul traps using 3-D FEM and the azimuthal multipole expansion
Autoři:
Oral, Martin ; Číp, Ondřej ; Slodička, L. Typ dokumentu: Příspěvky z konference Konference/Akce: Recent Trends in Charged Particle Optics and Surface Physics Instrumentation, Skalský dvůr (CZ), 20180604
Rok:
2018
Jazyk:
eng
Abstrakt: 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.
Klíčová slova:
atomic clock; electric RF fields; finite element method; ion trajectories; linear ion traps; multipole field expansion; particle tracing; simulation of electrostatic fields Číslo projektu: GB14-36681G (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Recent Trends in Charged Particle Optics and Surface Physics Instrumentation. Proceedings of the 16th International Seminar, ISBN 978-80-87441-23-7
Instituce: Ústav přístrojové techniky AV ČR
(web)
Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0287623