Entanglement-Enhanced Optical Atomic Clocks
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2022
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| _version_ | 1866913395983253504 |
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| author | Colombo, Simone Pedrozo-Peñafiel, Edwin Vuletić, Vladan |
| author_facet | Colombo, Simone Pedrozo-Peñafiel, Edwin Vuletić, Vladan |
| contents | Recent developments in atomic physics have enabled the experimental generation of many-body entangled states to boost the performance of quantum sensors beyond the Standard Quantum Limit (SQL). This limit is imposed by the inherent projection noise of a quantum measurement. In this perspective article, we describe the commonly used experimental methods to create many-body entangled states to operate quantum sensors beyond the SQL. In particular, we focus on the potential of applying quantum entanglement to state-of-the-art optical atomic clocks. In addition, we present recently developed time-reversal protocols that make use of complex states with high quantum Fisher information without requiring sub-SQL measurement resolution. We discuss the prospects for reaching near-Heisenberg limited quantum metrology based on such protocols. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2209_00471 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Entanglement-Enhanced Optical Atomic Clocks Colombo, Simone Pedrozo-Peñafiel, Edwin Vuletić, Vladan Quantum Physics Atomic Physics Recent developments in atomic physics have enabled the experimental generation of many-body entangled states to boost the performance of quantum sensors beyond the Standard Quantum Limit (SQL). This limit is imposed by the inherent projection noise of a quantum measurement. In this perspective article, we describe the commonly used experimental methods to create many-body entangled states to operate quantum sensors beyond the SQL. In particular, we focus on the potential of applying quantum entanglement to state-of-the-art optical atomic clocks. In addition, we present recently developed time-reversal protocols that make use of complex states with high quantum Fisher information without requiring sub-SQL measurement resolution. We discuss the prospects for reaching near-Heisenberg limited quantum metrology based on such protocols. |
| title | Entanglement-Enhanced Optical Atomic Clocks |
| topic | Quantum Physics Atomic Physics |
| url | https://arxiv.org/abs/2209.00471 |