Entanglement-assisted tunneling dynamics of impurities in a double well immersed in a bath of lattice trapped bosons
We unravel the correlated tunneling dynamics of an impurity trapped in a double well and interacting repulsively with a majority species of lattice trapped bosons. Upon quenching the tilt of the double well it is found that the quench-induced tunneling dynamics depends crucially on the interspecies...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ab6eab |
| _version_ | 1797750353719984128 |
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| author | Friethjof Theel Kevin Keiler Simeon I Mistakidis Peter Schmelcher |
| author_facet | Friethjof Theel Kevin Keiler Simeon I Mistakidis Peter Schmelcher |
| author_sort | Friethjof Theel |
| collection | DOAJ |
| description | We unravel the correlated tunneling dynamics of an impurity trapped in a double well and interacting repulsively with a majority species of lattice trapped bosons. Upon quenching the tilt of the double well it is found that the quench-induced tunneling dynamics depends crucially on the interspecies interaction strength and the presence of entanglement inherent in the system. In particular, for weak couplings the impurity performs a rather irregular tunneling process in the double well. Increasing the interspecies coupling it is possible to control the response of the impurity which undergoes a delayed tunneling while the majority species effectively acts as a material barrier. For very strong interspecies interaction strengths the impurity exhibits a self-trapping behavior. We showcase that a similar tunneling dynamics takes place for two weakly interacting impurities and identify its underlying transport mechanisms in terms of pair and single-particle tunneling processes. |
| first_indexed | 2024-03-12T16:31:33Z |
| format | Article |
| id | doaj.art-7946356253844a778542e25b8414d792 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:31:33Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-7946356253844a778542e25b8414d7922023-08-08T15:28:32ZengIOP PublishingNew Journal of Physics1367-26302020-01-0122202302710.1088/1367-2630/ab6eabEntanglement-assisted tunneling dynamics of impurities in a double well immersed in a bath of lattice trapped bosonsFriethjof Theel0Kevin Keiler1Simeon I Mistakidis2https://orcid.org/0000-0002-5118-5792Peter Schmelcher3https://orcid.org/0000-0002-2637-0937Center for Optical Quantum Technologies, University of Hamburg , Department of Physics, Luruper Chaussee 149, D-22761, Hamburg, GermanyCenter for Optical Quantum Technologies, University of Hamburg , Department of Physics, Luruper Chaussee 149, D-22761, Hamburg, GermanyCenter for Optical Quantum Technologies, University of Hamburg , Department of Physics, Luruper Chaussee 149, D-22761, Hamburg, GermanyCenter for Optical Quantum Technologies, University of Hamburg , Department of Physics, Luruper Chaussee 149, D-22761, Hamburg, Germany; The Hamburg Centre for Ultrafast Imaging, University of Hamburg , Luruper Chaussee 149, D-22761, Hamburg, GermanyWe unravel the correlated tunneling dynamics of an impurity trapped in a double well and interacting repulsively with a majority species of lattice trapped bosons. Upon quenching the tilt of the double well it is found that the quench-induced tunneling dynamics depends crucially on the interspecies interaction strength and the presence of entanglement inherent in the system. In particular, for weak couplings the impurity performs a rather irregular tunneling process in the double well. Increasing the interspecies coupling it is possible to control the response of the impurity which undergoes a delayed tunneling while the majority species effectively acts as a material barrier. For very strong interspecies interaction strengths the impurity exhibits a self-trapping behavior. We showcase that a similar tunneling dynamics takes place for two weakly interacting impurities and identify its underlying transport mechanisms in terms of pair and single-particle tunneling processes.https://doi.org/10.1088/1367-2630/ab6eabmany-body physicsimpuritiesoptical latticecorrelations |
| spellingShingle | Friethjof Theel Kevin Keiler Simeon I Mistakidis Peter Schmelcher Entanglement-assisted tunneling dynamics of impurities in a double well immersed in a bath of lattice trapped bosons New Journal of Physics many-body physics impurities optical lattice correlations |
| title | Entanglement-assisted tunneling dynamics of impurities in a double well immersed in a bath of lattice trapped bosons |
| title_full | Entanglement-assisted tunneling dynamics of impurities in a double well immersed in a bath of lattice trapped bosons |
| title_fullStr | Entanglement-assisted tunneling dynamics of impurities in a double well immersed in a bath of lattice trapped bosons |
| title_full_unstemmed | Entanglement-assisted tunneling dynamics of impurities in a double well immersed in a bath of lattice trapped bosons |
| title_short | Entanglement-assisted tunneling dynamics of impurities in a double well immersed in a bath of lattice trapped bosons |
| title_sort | entanglement assisted tunneling dynamics of impurities in a double well immersed in a bath of lattice trapped bosons |
| topic | many-body physics impurities optical lattice correlations |
| url | https://doi.org/10.1088/1367-2630/ab6eab |
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