Motional-state analysis of a trapped ion by ultranarrowband composite pulses
In this work, we present a method for measuring the motional state of a two-level system coupled to a harmonic oscillator. Our technique uses ultranarrowband composite pulses on the blue sideband transition to scan through the populations of the different motional states. Our approach does not assume any previous knowledge of the motional state distribution and is easily implemented. It is applicable both inside and outside of the Lamb-Dicke regime. For higher phonon numbers especially, the composite pulse sequence can be used as a filter for measuring phonon number ranges. We demonstrate this measurement technique using a single trapped ion and show good detection results with the numerically evaluated pulse sequence. Published by the American Physical Society 2024
Authors
- Markus Hennrich (ORCID: https://orcid.org/0000-0003-2955-7980)
- Harry Parke (ORCID: https://orcid.org/0000-0001-6120-5470)
- C. F. Roos (ORCID: https://orcid.org/0000-0001-7121-8259)
- Marion Mallweger (ORCID: https://orcid.org/0009-0009-8142-2988)
- Gerard Higgins (ORCID: https://orcid.org/0000-0003-0946-8067)
- Milena Guevara-Bertsch (ORCID: https://orcid.org/0000-0003-3771-6531)
- Boyan T. Torosov (ORCID: https://orcid.org/0000-0002-6690-1712)
- Robin Thomm (ORCID: https://orcid.org/0009-0000-8105-8690)
- Natalia Kuk (ORCID: https://orcid.org/0009-0003-0601-0314)
- Nikolay V. Vitanov (ORCID: https://orcid.org/0000-0002-8599-4766)
Institutions
- Stockholm University (SE)
- Universität Innsbruck (AT)
- Bulgarian Academy of Sciences (BG)
- Institute for Quantum Optics and Quantum Information Innsbruck (AT)
- Sofia University "St. Kliment Ohridski" (BG)
- Chalmers University of Technology (SE)
Publication Details
- Journal
- Physical review. A/Physical review, A
- Published
- 2024-11-07
- DOI
- https://doi.org/10.1103/physreva.110.053103
- Citations
- 5
- Primary Topic
- Cold Atom Physics and Bose-Einstein Condensates
- Type
- article
- Field-Weighted Citation Impact
- 1.69
Funders
- Carl Tryggers Stiftelse för Vetenskaplig Forskning
- Knut och Alice Wallenbergs Stiftelse
- Vetenskapsrådet