Large momentum transfer Raman atom interferometer without k-reversal
We present a Raman atom interferometer using large momentum transfer without reversing the direction of the effective wave vector (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 4ℏk momentum...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2025-08-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/ghlb-v3jc |
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| Summary: | We present a Raman atom interferometer using large momentum transfer without reversing the direction of the effective wave vector (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 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. |
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| ISSN: | 2643-1564 |