Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems
We investigate the dynamics of a generic interacting many-body system under conditions of electromagnetically induced transparency (EIT). This problem is of current relevance due to its connection to non-linear optical media realized by Rydberg atoms. In an interacting system the structure of the dy...
| Main Authors: | , , , , , |
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| Format: | Article |
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American Physical Society
2017
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| Online Access: | https://eprints.nottingham.ac.uk/47013/ |
| _version_ | 1848797449005563904 |
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| author | Macieszczak, Katarzyna Zhou, YanLi Hofferberth, Sebastian Garrahan, Juan P. Li, Weibin Lesanovsky, Igor |
| author_facet | Macieszczak, Katarzyna Zhou, YanLi Hofferberth, Sebastian Garrahan, Juan P. Li, Weibin Lesanovsky, Igor |
| author_sort | Macieszczak, Katarzyna |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We investigate the dynamics of a generic interacting many-body system under conditions of electromagnetically induced transparency (EIT). This problem is of current relevance due to its connection to non-linear optical media realized by Rydberg atoms. In an interacting system the structure of the dynamics and the approach to the stationary state becomes far more complex than in the case of conventional EIT. In particular, we discuss the emergence of a metastable decoherence free subspace, whose dimension for a single Rydberg excitation grows linearly in the number of atoms. On approach to stationarity this leads to a slow dynamics which renders the typical assumption of fast relaxation invalid. We derive analytically the effective non-equilibrium dynamics in the decoherence free subspace which features coherent and dissipative two-body interactions. We discuss the use of this scenario for the preparation of collective entangled dark states and the realization of general unitary dynamics within the spin-wave subspace. |
| first_indexed | 2025-11-14T20:04:03Z |
| format | Article |
| id | nottingham-47013 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:04:03Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-470132020-05-04T19:10:53Z https://eprints.nottingham.ac.uk/47013/ Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems Macieszczak, Katarzyna Zhou, YanLi Hofferberth, Sebastian Garrahan, Juan P. Li, Weibin Lesanovsky, Igor We investigate the dynamics of a generic interacting many-body system under conditions of electromagnetically induced transparency (EIT). This problem is of current relevance due to its connection to non-linear optical media realized by Rydberg atoms. In an interacting system the structure of the dynamics and the approach to the stationary state becomes far more complex than in the case of conventional EIT. In particular, we discuss the emergence of a metastable decoherence free subspace, whose dimension for a single Rydberg excitation grows linearly in the number of atoms. On approach to stationarity this leads to a slow dynamics which renders the typical assumption of fast relaxation invalid. We derive analytically the effective non-equilibrium dynamics in the decoherence free subspace which features coherent and dissipative two-body interactions. We discuss the use of this scenario for the preparation of collective entangled dark states and the realization of general unitary dynamics within the spin-wave subspace. American Physical Society 2017-10-04 Article PeerReviewed Macieszczak, Katarzyna, Zhou, YanLi, Hofferberth, Sebastian, Garrahan, Juan P., Li, Weibin and Lesanovsky, Igor (2017) Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems. Physical Review A . ISSN 2469-9934 (In Press) |
| spellingShingle | Macieszczak, Katarzyna Zhou, YanLi Hofferberth, Sebastian Garrahan, Juan P. Li, Weibin Lesanovsky, Igor Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems |
| title | Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems |
| title_full | Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems |
| title_fullStr | Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems |
| title_full_unstemmed | Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems |
| title_short | Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems |
| title_sort | metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems |
| url | https://eprints.nottingham.ac.uk/47013/ |