Sub-shot-noise interferometry with two-mode quantum states
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866916113720279040 |
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| author | Marolleau, Quentin Leprince, Charlie Gondret, Victor Boiron, Denis Westbrook, Christoph I |
| author_facet | Marolleau, Quentin Leprince, Charlie Gondret, Victor Boiron, Denis Westbrook, Christoph I |
| contents | We study the feasibility of sub-shot-noise interferometry with imperfect detectors, starting from twin-Fock states and two mode squeezed vacuum states. We derive analytical expressions for the corresponding phase uncertainty. We find that one can achieve phase shift measurements below the standard quantum limit, as long as the losses are smaller than a given threshold, and that the measured phase is close enough to an optimal value. We provide our analytical formulae in a Python package, accessible online. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_16479 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Sub-shot-noise interferometry with two-mode quantum states Marolleau, Quentin Leprince, Charlie Gondret, Victor Boiron, Denis Westbrook, Christoph I Atomic Physics Quantum Gases Quantum Physics We study the feasibility of sub-shot-noise interferometry with imperfect detectors, starting from twin-Fock states and two mode squeezed vacuum states. We derive analytical expressions for the corresponding phase uncertainty. We find that one can achieve phase shift measurements below the standard quantum limit, as long as the losses are smaller than a given threshold, and that the measured phase is close enough to an optimal value. We provide our analytical formulae in a Python package, accessible online. |
| title | Sub-shot-noise interferometry with two-mode quantum states |
| topic | Atomic Physics Quantum Gases Quantum Physics |
| url | https://arxiv.org/abs/2307.16479 |