Ramsey Atom Interferometry with Transverse Optical Modes

@misc{husband2026ramsey,
  title = {{Ramsey Atom Interferometry with Transverse Optical Modes}},
  author = {Ryan Husband and Ryan J. Thomas and Yosri Ben-Aïcha and Rhys H. Eagle and Jessica Eastman and John E. Debs and Patrick J. Everitt and Michael Larsen and Eric Imhof and Charles A. Sackett and John D. Close and Simon A. Haine and Samuel Legge},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2606.04430},
  eprint = {2606.04430},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.04430},
  note = {CC BY-NC-ND 4.0},
}

TY  - UNPB
TI  - Ramsey Atom Interferometry with Transverse Optical Modes
AU  - Ryan Husband
AU  - Ryan J. Thomas
AU  - Yosri Ben-Aïcha
AU  - Rhys H. Eagle
AU  - Jessica Eastman
AU  - John E. Debs
AU  - Patrick J. Everitt
AU  - Michael Larsen
AU  - Eric Imhof
AU  - Charles A. Sackett
AU  - John D. Close
AU  - Simon A. Haine
AU  - Samuel Legge
PY  - 2026
DA  - 2026/10/24
PB  - arXiv
DO  - 10.48550/arxiv.2606.04430
UR  - https://arxiv.org/abs/2606.04430
AB  - We experimentally demonstrate atom interferometry using the transverse phase profile of an optical mode. As proof-of-principle, we use the helical phase windings of Hypergeometric Gaussian beams for Ramsey interferometry with ensembles of ballistically-expanding cold Rb87 atoms, and we show that the interferometer can measure rotations induced by a motor with a sensitivity that scales linearly with orbital angular momentum and interferometer time. We characterize the thermal decoherence of the interferometer, deriving and experimentally confirming a closed-form expression for the spatially-varying interferometer visibility arising near the singularity of the helical phase winding, motivating the use of condensed atoms in ring-shaped traps.
ER  -