Reference-frame-independent model of a collective-excitation atom interferometer
Article
Mommers, B. J. and Bromley, M. W. J.. 2023. "Reference-frame-independent model of a collective-excitation atom interferometer." Physical Review A. 107 (2). https://doi.org/10.1103/PhysRevA.107.023314
| Article Title | Reference-frame-independent model of a collective-excitation atom interferometer |
|---|---|
| ERA Journal ID | 1017 |
| Article Category | Article |
| Authors | Mommers, B. J. and Bromley, M. W. J. |
| Journal Title | Physical Review A |
| Journal Citation | 107 (2) |
| Article Number | 023314 |
| Number of Pages | 10 |
| Year | 2023 |
| Publisher | American Physical Society |
| Place of Publication | United States |
| ISSN | 1050-2947 |
| 1094-1622 | |
| 1538-4446 | |
| 2469-9926 | |
| 2469-9934 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1103/PhysRevA.107.023314 |
| Web Address (URL) | https://journals.aps.org/pra/abstract/10.1103/PhysRevA.107.023314 |
| Abstract | We theoretically analyze the operating principles of a proposed matter-wave Sagnac interferometer utilizing Bose-Einstein-condensate (BEC) phonon modes as an interference medium. Previous work found that the orbital angular momentum phonon modes of a ring-trapped BEC are split in frequency by rotations, leading to a measurable rotation signal. We develop an alternate description in which an imbalance in the counterpropagating modes' amplitudes (populations) is induced by the rotation of the system during condensation. This description gives analytic forms for the interferometic phase shift in one dimension and is readily generalized to include mean-field interactions. To validate our findings, we simulate a ring-trapped BEC Sagnac interferometer in one dimension and demonstrate that measurement of an unknown rotation rate can be performed using a modified analysis. Our simulation data show strong agreement with our analytic results, and we further employ simulations to explore and clarify the role of superfluidity in this matter-wave Sagnac interferometer. |
| ANZSRC Field of Research 2020 | 5102. Atomic, molecular and optical physics |
| Public Notes | The accessible file is the accepted version of the paper. Please refer to the URL for the published version. |
| Byline Affiliations | University of Queensland |
| School of Sciences |
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