Entanglement-Enhanced Atomic Gravimeter
Interferometers based on ultracold atoms enable an absolute measurement of inertial forces with unprecedented precision. However, their resolution is fundamentally restricted by quantum fluctuations. Improved resolutions with entangled or squeezed atoms were demonstrated in internal-state measuremen...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-02-01
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| Series: | Physical Review X |
| Online Access: | http://doi.org/10.1103/PhysRevX.15.011029 |
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| _version_ | 1823858031335571456 |
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| author | Christophe Cassens Bernd Meyer-Hoppe Ernst Rasel Carsten Klempt |
| author_facet | Christophe Cassens Bernd Meyer-Hoppe Ernst Rasel Carsten Klempt |
| author_sort | Christophe Cassens |
| collection | DOAJ |
| description | Interferometers based on ultracold atoms enable an absolute measurement of inertial forces with unprecedented precision. However, their resolution is fundamentally restricted by quantum fluctuations. Improved resolutions with entangled or squeezed atoms were demonstrated in internal-state measurements for thermal and quantum-degenerate atoms and, recently, for momentum-state interferometers with laser-cooled atoms. Here, we present a gravimeter based on Bose-Einstein condensates with a sensitivity of -1.7_{-0.5}^{+0.4} dB beyond the standard quantum limit. Interferometry with Bose-Einstein condensates combined with delta-kick collimation minimizes atom loss in and improves scalability of the interferometer to very-long-baseline atom interferometers. |
| format | Article |
| id | doaj-art-23cccf4014914165bf1eaa53c8cc4f7a |
| institution | Kabale University |
| issn | 2160-3308 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review X |
| spelling | doaj-art-23cccf4014914165bf1eaa53c8cc4f7a2025-02-11T15:06:48ZengAmerican Physical SocietyPhysical Review X2160-33082025-02-0115101102910.1103/PhysRevX.15.011029Entanglement-Enhanced Atomic GravimeterChristophe CassensBernd Meyer-HoppeErnst RaselCarsten KlemptInterferometers based on ultracold atoms enable an absolute measurement of inertial forces with unprecedented precision. However, their resolution is fundamentally restricted by quantum fluctuations. Improved resolutions with entangled or squeezed atoms were demonstrated in internal-state measurements for thermal and quantum-degenerate atoms and, recently, for momentum-state interferometers with laser-cooled atoms. Here, we present a gravimeter based on Bose-Einstein condensates with a sensitivity of -1.7_{-0.5}^{+0.4} dB beyond the standard quantum limit. Interferometry with Bose-Einstein condensates combined with delta-kick collimation minimizes atom loss in and improves scalability of the interferometer to very-long-baseline atom interferometers.http://doi.org/10.1103/PhysRevX.15.011029 |
| spellingShingle | Christophe Cassens Bernd Meyer-Hoppe Ernst Rasel Carsten Klempt Entanglement-Enhanced Atomic Gravimeter Physical Review X |
| title | Entanglement-Enhanced Atomic Gravimeter |
| title_full | Entanglement-Enhanced Atomic Gravimeter |
| title_fullStr | Entanglement-Enhanced Atomic Gravimeter |
| title_full_unstemmed | Entanglement-Enhanced Atomic Gravimeter |
| title_short | Entanglement-Enhanced Atomic Gravimeter |
| title_sort | entanglement enhanced atomic gravimeter |
| url | http://doi.org/10.1103/PhysRevX.15.011029 |
| work_keys_str_mv | AT christophecassens entanglementenhancedatomicgravimeter AT berndmeyerhoppe entanglementenhancedatomicgravimeter AT ernstrasel entanglementenhancedatomicgravimeter AT carstenklempt entanglementenhancedatomicgravimeter |