Cavity-aided quantum parameter estimation in a bosonic double-well Josephson junction
We describe an apparatus designed to make nondemolition measurements on a Bose-Einstein condensate trapped in a double-well optical cavity. This apparatus contains, as well as the bosonic gas and the trap, an optical cavity. We show how the interaction between the light and the atoms, under appropri...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Online Access: | https://hdl.handle.net/10356/107375 http://hdl.handle.net/10220/25602 |
| _version_ | 1811694726134366208 |
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| author | Semião, F. L. Palma, G. M. Zuppardo, Margherita Santos, J. P. De Chiara, G. Paternostro, M. |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Semião, F. L. Palma, G. M. Zuppardo, Margherita Santos, J. P. De Chiara, G. Paternostro, M. |
| author_sort | Semião, F. L. |
| collection | NTU |
| description | We describe an apparatus designed to make nondemolition measurements on a Bose-Einstein condensate trapped in a double-well optical cavity. This apparatus contains, as well as the bosonic gas and the trap, an optical cavity. We show how the interaction between the light and the atoms, under appropriate conditions, can allow for a weakly disturbing yet highly precise measurement of the population imbalance between the two wells and its variance. We show that the setting is well suited for the implementation of quantum-limited estimation strategies for the inference of the key parameters defining the evolution of the atomic system and based on measurements performed on the cavity field. This would enable de facto Hamiltonian diagnosis via a highly controllable quantum probe. |
| first_indexed | 2024-10-01T07:12:09Z |
| format | Journal Article |
| id | ntu-10356/107375 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:12:09Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1073752023-02-28T19:46:24Z Cavity-aided quantum parameter estimation in a bosonic double-well Josephson junction Semião, F. L. Palma, G. M. Zuppardo, Margherita Santos, J. P. De Chiara, G. Paternostro, M. School of Physical and Mathematical Sciences DRNTU::Science::Physics::Atomic physics::Quantum theory We describe an apparatus designed to make nondemolition measurements on a Bose-Einstein condensate trapped in a double-well optical cavity. This apparatus contains, as well as the bosonic gas and the trap, an optical cavity. We show how the interaction between the light and the atoms, under appropriate conditions, can allow for a weakly disturbing yet highly precise measurement of the population imbalance between the two wells and its variance. We show that the setting is well suited for the implementation of quantum-limited estimation strategies for the inference of the key parameters defining the evolution of the atomic system and based on measurements performed on the cavity field. This would enable de facto Hamiltonian diagnosis via a highly controllable quantum probe. Published version 2015-05-19T08:47:17Z 2019-12-06T22:29:33Z 2015-05-19T08:47:17Z 2019-12-06T22:29:33Z 2015 2015 Journal Article Zuppardo, M., Santos, J. P., De Chiara, G., Paternostro, M., Semião, F. L., & Palma, G. M. (2015). Cavity-aided quantum parameter estimation in a bosonic double-well Josephson junction. Physical review A, 91(3). https://hdl.handle.net/10356/107375 http://hdl.handle.net/10220/25602 10.1103/PhysRevA.91.033631 en Physical review A © 2015 American Physical Society. This paper was published in Physical Review A and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.1103/PhysRevA.91.033631]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 9 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics::Atomic physics::Quantum theory Semião, F. L. Palma, G. M. Zuppardo, Margherita Santos, J. P. De Chiara, G. Paternostro, M. Cavity-aided quantum parameter estimation in a bosonic double-well Josephson junction |
| title | Cavity-aided quantum parameter estimation in a bosonic double-well Josephson junction |
| title_full | Cavity-aided quantum parameter estimation in a bosonic double-well Josephson junction |
| title_fullStr | Cavity-aided quantum parameter estimation in a bosonic double-well Josephson junction |
| title_full_unstemmed | Cavity-aided quantum parameter estimation in a bosonic double-well Josephson junction |
| title_short | Cavity-aided quantum parameter estimation in a bosonic double-well Josephson junction |
| title_sort | cavity aided quantum parameter estimation in a bosonic double well josephson junction |
| topic | DRNTU::Science::Physics::Atomic physics::Quantum theory |
| url | https://hdl.handle.net/10356/107375 http://hdl.handle.net/10220/25602 |
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