LKB - Trapped Ions Metrology

Trapped Ions Group

The group’s activity is centered on precision measurements with cold trapped ions. In particular, the simplest of all molecules, the H2+ ion, is studied both experimentally and theoretically. The general aim of this research is to test fundamental theories and improve our knowledge of fundamental physical constants.


Recent Papers

Fundamental Transitions and Ionization Energies of the Hydrogen Molecular Ions with Few ppt Uncertainty

V. I. Korobov, L. Hilico, J.-Ph. Karr

Phys. Rev. Lett. 118, 233001, 2017

Hbar+ Sympathetic Cooling Simulations with a Variable Time Step

N. Sillitoe, J.-Ph. Karr, J. Heinrich, T. Louvradoux, A. Douillet, L. Hilico

JPS Conf. Proc. 18, 011014, 2017

Proton–electron mass ratio from HD+ revisited

S. Patra, J.-Ph. Karr, L. Hilico, M. Germann, V.I. Korobov, J. C. J. Koelemeij

J. Phys. B: At. Mol. Opt. Phys. 51, 024003, 2018


Filter Categories
PhD Student
  • Albane Douillet
    Associate Professor
  • Jean-Philippe Karr
    Associate Professor
  • Laurent Hilico
  • Group
    Trapped Ions Group
  • Thomas Louvradoux
    PhD Student
  • Mohammad Haidar
    PhD Student
  • Julian Schmidt

We are always looking for brillant motivated scientists to join our group.

Check the open positions or send us your CV for application.




Laboratoire Kastler Brossel, 4 place Jussieu, Case 74, 75252 Paris Cedex 05



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