Large momentum transfer Raman atom interferometer without 𝑘-reversal
File(s)
Supporting information
Published version
Author(s)
Type
Journal Article
Abstract
We present a Raman atom interferometer using large momentum transfer without reversing the
direction of the effective wavevector (k-reversal). More specifically, we use a microwave π/2 pulse
to manipulate the spin state of ⁸⁷Rb atoms before applying a Raman light π pulse to achieve 4ℏk momentum transfer per Raman light pulse. A microwave π pulse in the middle of the interferometer sequence reverses the spin states, which allows closing of the interferometer arms by the same Raman light π pulses without propagation reversal. We present a proof-of-principle demonstration of a 4ℏk
large-momentum-transfer (LMT) atom interferometer and discuss its scalability. Our results extend the scope of using LMT atom optics.
direction of the effective wavevector (k-reversal). More specifically, we use a microwave π/2 pulse
to manipulate the spin state of ⁸⁷Rb atoms before applying a Raman light π pulse to achieve 4ℏk momentum transfer per Raman light pulse. A microwave π pulse in the middle of the interferometer sequence reverses the spin states, which allows closing of the interferometer arms by the same Raman light π pulses without propagation reversal. We present a proof-of-principle demonstration of a 4ℏk
large-momentum-transfer (LMT) atom interferometer and discuss its scalability. Our results extend the scope of using LMT atom optics.
Date Issued
2025-08-25
Date Acceptance
2025-07-21
Citation
Physical Review Research, 2025, 7 (3)
ISSN
2643-1564
Publisher
American Physical Society
Journal / Book Title
Physical Review Research
Volume
7
Issue
3
Copyright Statement
© 2025 The Author(s). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
License URL
Publication Status
Published
Coverage Spatial
United Kingdom
Article Number
L032045