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Proceedings Paper

Sympathetic cooling in a multi-isotope Sr+ Coulomb crystal
Author(s): S. Removille; Q. Glorieux; T. Coudreau; L. Guidoni; J.-P. Likforman; S. Guibal
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Paper Abstract

This paper reports on trapping and laser-cooling of singly-ionized strontium ions in a linear Paul trap. We demonstrate loading of large ion clouds containing as much as 106 ions and laser cooling down to the Coulomb crystal transition. We observe the spatial segregation of the different Sr+ isotopes due to the mass-dependent Paul trap stiffness. Sympathetic cooling of the different isotopes is demonstrated, either by laser-cooling of 88Sr+ (83% abundance) or of 86Sr+ (10% abundance). These demonstrations open the way to the use of a large ion Coulomb crystal for quantum optics and quantum information experiments, where the strong confinement, the long lifetime, and the absence of perturbation by cooling lasers are crucial.

Paper Details

Date Published: 4 June 2010
PDF: 9 pages
Proc. SPIE 7727, Quantum Optics, 77270T (4 June 2010); doi: 10.1117/12.855579
Show Author Affiliations
S. Removille, Lab. Matériaux et Phénomènes Quantiques, CNRS, Univ. Paris-Diderot, Paris 7 (France)
Q. Glorieux, Lab. Matériaux et Phénomènes Quantiques, CNRS, Univ. Paris-Diderot, Paris 7 (France)
T. Coudreau, Lab. Matériaux et Phénomènes Quantiques, CNRS, Univ. Paris-Diderot, Paris 7 (France)
L. Guidoni, Lab. Matériaux et Phénomènes Quantiques, CNRS, Univ. Paris-Diderot, Paris 7 (France)
J.-P. Likforman, Lab. Matériaux et Phénomènes Quantiques, CNRS, Univ. Paris-Diderot, Paris 7 (France)
S. Guibal, Lab. Matériaux et Phénomènes Quantiques, CNRS, Univ. Paris-Diderot, Paris 7 (France)


Published in SPIE Proceedings Vol. 7727:
Quantum Optics
Victor N. Zadkov; Thomas Durt, Editor(s)

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