Unlocking Heisenberg Sensitivity with Sequential Weak Measurement Preparation
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866909456167600128 |
|---|---|
| author | Lantaño, T. B. Yang, Dayou Audenaert, K. M. R. Huelga, S. F. Plenio, M. B. |
| author_facet | Lantaño, T. B. Yang, Dayou Audenaert, K. M. R. Huelga, S. F. Plenio, M. B. |
| contents | We propose a state preparation protocol based on sequential measurements of a central spin coupled with a spin ensemble, and investigate the usefulness of the generated multi-spin states for quantum enhanced metrology. Our protocol is shown to generate highly entangled spin states, devoid of the necessity for non-linear spin interactions. The metrological sensitivity of the resulting state surpasses the standard quantum limit, reaching the Heisenberg limit under symmetric coupling strength conditions. We also explore asymmetric coupling strengths, identifying specific preparation windows in time for optimal sensitivity. Our findings introduce a novel method for generating large-scale, non-classical, entangled states, enabling quantum-enhanced metrology within current experimental capabilities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_05954 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Unlocking Heisenberg Sensitivity with Sequential Weak Measurement Preparation Lantaño, T. B. Yang, Dayou Audenaert, K. M. R. Huelga, S. F. Plenio, M. B. Quantum Physics We propose a state preparation protocol based on sequential measurements of a central spin coupled with a spin ensemble, and investigate the usefulness of the generated multi-spin states for quantum enhanced metrology. Our protocol is shown to generate highly entangled spin states, devoid of the necessity for non-linear spin interactions. The metrological sensitivity of the resulting state surpasses the standard quantum limit, reaching the Heisenberg limit under symmetric coupling strength conditions. We also explore asymmetric coupling strengths, identifying specific preparation windows in time for optimal sensitivity. Our findings introduce a novel method for generating large-scale, non-classical, entangled states, enabling quantum-enhanced metrology within current experimental capabilities. |
| title | Unlocking Heisenberg Sensitivity with Sequential Weak Measurement Preparation |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2403.05954 |