Control of anomalous diffusion of a Bose polaron
We study the diffusive behavior of a Bose polaron immersed in a coherently coupled two-component Bose-Einstein Condensate (BEC). We assume a uniform, one-dimensional BEC. Polaron superdiffuses if it couples in the same manner to both components, i.e. either attractively or repulsively to both of the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
2020-02-01
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| Series: | Quantum |
| Online Access: | https://quantum-journal.org/papers/q-2020-02-20-232/pdf/ |
| _version_ | 1818029525156495360 |
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| author | Christos Charalambous Miguel Ángel García-March Gorka Muñoz-Gil Przemysław Ryszard Grzybowski Maciej Lewenstein |
| author_facet | Christos Charalambous Miguel Ángel García-March Gorka Muñoz-Gil Przemysław Ryszard Grzybowski Maciej Lewenstein |
| author_sort | Christos Charalambous |
| collection | DOAJ |
| description | We study the diffusive behavior of a Bose polaron immersed in a coherently coupled two-component Bose-Einstein Condensate (BEC). We assume a uniform, one-dimensional BEC. Polaron superdiffuses if it couples in the same manner to both components, i.e. either attractively or repulsively to both of them. This is the same behavior as that of an impurity immersed in a single BEC. Conversely, the polaron exhibits a transient nontrivial subdiffusive behavior if it couples attractively to one of the components and repulsively to the other. The anomalous diffusion exponent and the duration of the subdiffusive interval can be controlled with the Rabi frequency of the coherent coupling between the two components, and with the coupling strength of the impurity to the BEC. |
| first_indexed | 2024-12-10T05:21:04Z |
| format | Article |
| id | doaj.art-48d1a2a29fca4920a3d97f6905a108bd |
| institution | Directory Open Access Journal |
| issn | 2521-327X |
| language | English |
| last_indexed | 2024-12-10T05:21:04Z |
| publishDate | 2020-02-01 |
| publisher | Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften |
| record_format | Article |
| series | Quantum |
| spelling | doaj.art-48d1a2a29fca4920a3d97f6905a108bd2022-12-22T02:00:48ZengVerein zur Förderung des Open Access Publizierens in den QuantenwissenschaftenQuantum2521-327X2020-02-01423210.22331/q-2020-02-20-23210.22331/q-2020-02-20-232Control of anomalous diffusion of a Bose polaronChristos CharalambousMiguel Ángel García-MarchGorka Muñoz-GilPrzemysław Ryszard GrzybowskiMaciej LewensteinWe study the diffusive behavior of a Bose polaron immersed in a coherently coupled two-component Bose-Einstein Condensate (BEC). We assume a uniform, one-dimensional BEC. Polaron superdiffuses if it couples in the same manner to both components, i.e. either attractively or repulsively to both of them. This is the same behavior as that of an impurity immersed in a single BEC. Conversely, the polaron exhibits a transient nontrivial subdiffusive behavior if it couples attractively to one of the components and repulsively to the other. The anomalous diffusion exponent and the duration of the subdiffusive interval can be controlled with the Rabi frequency of the coherent coupling between the two components, and with the coupling strength of the impurity to the BEC.https://quantum-journal.org/papers/q-2020-02-20-232/pdf/ |
| spellingShingle | Christos Charalambous Miguel Ángel García-March Gorka Muñoz-Gil Przemysław Ryszard Grzybowski Maciej Lewenstein Control of anomalous diffusion of a Bose polaron Quantum |
| title | Control of anomalous diffusion of a Bose polaron |
| title_full | Control of anomalous diffusion of a Bose polaron |
| title_fullStr | Control of anomalous diffusion of a Bose polaron |
| title_full_unstemmed | Control of anomalous diffusion of a Bose polaron |
| title_short | Control of anomalous diffusion of a Bose polaron |
| title_sort | control of anomalous diffusion of a bose polaron |
| url | https://quantum-journal.org/papers/q-2020-02-20-232/pdf/ |
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