Criticality-enhanced Electric Field Gradient Sensor with Single Trapped Ions
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Acceso en línea: | |
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| _version_ | 1866914748494249984 |
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| author | Ilias, Theodoros Yang, Dayou Huelga, Susana F. Plenio, Martin B. |
| author_facet | Ilias, Theodoros Yang, Dayou Huelga, Susana F. Plenio, Martin B. |
| contents | We propose and analyze a driven-dissipative quantum sensor that is continuously monitored close to a dissipative critical point. The sensor relies on the critical open Rabi model with the spin and phonon degrees of freedom of a single trapped ion to achieve criticality-enhanced sensitivity. Effective continuous monitoring of the sensor is realized via a co-trapped ancilla ion that switches between dark and bright internal states conditioned on a `jump' of the phonon population which, remarkably, achieves nearly perfect phonon counting despite a low photon collection efficiency. By exploiting both dissipative criticality and efficient continuous readout, the sensor device achieves highly precise sensing of oscillating electric field gradients at a criticality-enhanced precision scaling beyond the standard quantum limit, which we demonstrate is robust to the experimental imperfections in real-world applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_02050 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Criticality-enhanced Electric Field Gradient Sensor with Single Trapped Ions Ilias, Theodoros Yang, Dayou Huelga, Susana F. Plenio, Martin B. Quantum Physics We propose and analyze a driven-dissipative quantum sensor that is continuously monitored close to a dissipative critical point. The sensor relies on the critical open Rabi model with the spin and phonon degrees of freedom of a single trapped ion to achieve criticality-enhanced sensitivity. Effective continuous monitoring of the sensor is realized via a co-trapped ancilla ion that switches between dark and bright internal states conditioned on a `jump' of the phonon population which, remarkably, achieves nearly perfect phonon counting despite a low photon collection efficiency. By exploiting both dissipative criticality and efficient continuous readout, the sensor device achieves highly precise sensing of oscillating electric field gradients at a criticality-enhanced precision scaling beyond the standard quantum limit, which we demonstrate is robust to the experimental imperfections in real-world applications. |
| title | Criticality-enhanced Electric Field Gradient Sensor with Single Trapped Ions |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2304.02050 |