Precision Spectroscopy of Polarized Molecules in an Ion Trap Public Deposited
  • Polar molecules are desirable systems for quantum simulations and cold chemistry. Molecular ions are easily trapped, but a bias electric field applied to polarize them tends to accelerate them out of the trap. We present a general solution to this issue by rotating the bias field slowly enough for the molecular polarization axis to follow but rapidly enough for the ions to stay trapped. We demonstrate Ramsey spectroscopy between Stark-Zeeman sublevels in ¹⁸⁰Hf¹⁹F⁺ with a coherence time of 100 ms. Frequency shifts arising from well-controlled topological (Berry) phases are used to determine magnetic g-factors. The rotating-bias-field technique may enable using trapped polar molecules for precision measurement and quantum information science, including the search for an electron electric dipole moment.
Date Issued
  • 2013-12-06
Academic Affiliation
Journal Title
Journal Issue/Number
  • 6163
Journal Volume
  • 342
File Extent
  • 1220-1222
Last Modified
  • 2019-12-05
Resource Type
Rights Statement
  • 10.1126/science.1243683
  • 0036-8075