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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2502.03334 |
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| _version_ | 1866911062925770752 |
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| author | Peng, Guanchen Lanigan, Bryony Shah, R. Lim, J. Kaushik, A. Cotter, J. P. Hinds, E. A. Sauer, B. E. |
| author_facet | Peng, Guanchen Lanigan, Bryony Shah, R. Lim, J. Kaushik, A. Cotter, J. P. Hinds, E. A. Sauer, B. E. |
| contents | 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 $^{87}$Rb atoms before applying a Raman light $π$ pulse to achieve 4$\hbar k$ 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 4$\hbar k$ large-momentum-transfer (LMT) atom interferometer and discuss its scalability. Our results extend the scope of using LMT atom optics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_03334 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A large-momentum-transfer Raman atom interferometer without $k$-reversal Peng, Guanchen Lanigan, Bryony Shah, R. Lim, J. Kaushik, A. Cotter, J. P. Hinds, E. A. Sauer, B. E. Atomic Physics 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 $^{87}$Rb atoms before applying a Raman light $π$ pulse to achieve 4$\hbar k$ 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 4$\hbar k$ large-momentum-transfer (LMT) atom interferometer and discuss its scalability. Our results extend the scope of using LMT atom optics. |
| title | A large-momentum-transfer Raman atom interferometer without $k$-reversal |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2502.03334 |