Towards gravimetry enhancement with squeezed states
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866910265474285568 |
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| author | de Araujo, Oziel R. Marinho, Lucas S. Santos, Jonas F. G. Vieira, Carlos H. S. |
| author_facet | de Araujo, Oziel R. Marinho, Lucas S. Santos, Jonas F. G. Vieira, Carlos H. S. |
| contents | We investigate the sensitivity of gravitational acceleration estimation using squeezed probe states in a quantum metrology framework. In particular, we analyze how the squeezing phase, beyond its amplitude, affects the attainable precision. We show that probes squeezed along the canonical phase-space quadratures can surpass the shot-noise limit only in specific time regimes, whereas position-momentum correlated input states can consistently overcome this limit across all interaction times. Furthermore, we demonstrate that optimal sensitivity can be achieved by combining projective momentum measurements with a time-dependent adjustment of the squeezing phase. Our results highlight the fundamental role of phase-engineered squeezing in quantum gravimetry protocols and provide new insights into the design of optimized sensing strategies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_13973 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Towards gravimetry enhancement with squeezed states de Araujo, Oziel R. Marinho, Lucas S. Santos, Jonas F. G. Vieira, Carlos H. S. Quantum Physics We investigate the sensitivity of gravitational acceleration estimation using squeezed probe states in a quantum metrology framework. In particular, we analyze how the squeezing phase, beyond its amplitude, affects the attainable precision. We show that probes squeezed along the canonical phase-space quadratures can surpass the shot-noise limit only in specific time regimes, whereas position-momentum correlated input states can consistently overcome this limit across all interaction times. Furthermore, we demonstrate that optimal sensitivity can be achieved by combining projective momentum measurements with a time-dependent adjustment of the squeezing phase. Our results highlight the fundamental role of phase-engineered squeezing in quantum gravimetry protocols and provide new insights into the design of optimized sensing strategies. |
| title | Towards gravimetry enhancement with squeezed states |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2510.13973 |