Dicke State Generation and Extreme Spin Squeezing via Rapid Adiabatic Passage
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866914986272489472 |
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| author | Carrasco, Sebastian C. Goerz, Michael H. Malinovskaya, Svetlana A. Vuletic, Vladan Schleich, Wolfgang Malinovsky, Vladimir S. |
| author_facet | Carrasco, Sebastian C. Goerz, Michael H. Malinovskaya, Svetlana A. Vuletic, Vladan Schleich, Wolfgang Malinovsky, Vladimir S. |
| contents | Considering the unique energy level structure of the one-axis twisting Hamiltonian in combination with standard rotations, we propose the implementation of a rapid adiabatic passage scheme on the Dicke state basis. The method permits to drive Dicke states of the many-atom system into entangled states with maximum quantum Fisher information. The designed states allow to overcome the classical limit of phase sensitivity in quantum metrology and sensing. We show how to generate superpositions of Dicke states, which maximize metrological gain for a Ramsey interferometric measurement. The proposed scheme is remarkably robust to variations of the driving field and has favorable time scaling, especially for small to moderate (~ 1000) number of atoms, where the total time does not depend on the number of atoms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_03190 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Dicke State Generation and Extreme Spin Squeezing via Rapid Adiabatic Passage Carrasco, Sebastian C. Goerz, Michael H. Malinovskaya, Svetlana A. Vuletic, Vladan Schleich, Wolfgang Malinovsky, Vladimir S. Quantum Physics Considering the unique energy level structure of the one-axis twisting Hamiltonian in combination with standard rotations, we propose the implementation of a rapid adiabatic passage scheme on the Dicke state basis. The method permits to drive Dicke states of the many-atom system into entangled states with maximum quantum Fisher information. The designed states allow to overcome the classical limit of phase sensitivity in quantum metrology and sensing. We show how to generate superpositions of Dicke states, which maximize metrological gain for a Ramsey interferometric measurement. The proposed scheme is remarkably robust to variations of the driving field and has favorable time scaling, especially for small to moderate (~ 1000) number of atoms, where the total time does not depend on the number of atoms. |
| title | Dicke State Generation and Extreme Spin Squeezing via Rapid Adiabatic Passage |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2306.03190 |