Reentrant phase behavior in systems with density-induced tunneling
Abstract We show that correlations in strongly interacting many-particle systems can create quantum decoherence, leading to a mechanism of dissipation that does not rely on an external source. Using analytical methods, we study a bosonic many body system in two dimensions, with extended interactions...
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| Language: | English |
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Nature Portfolio
2024-05-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-60955-1 |
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| author | A. Krzywicka T. P. Polak |
| author_facet | A. Krzywicka T. P. Polak |
| author_sort | A. Krzywicka |
| collection | DOAJ |
| description | Abstract We show that correlations in strongly interacting many-particle systems can create quantum decoherence, leading to a mechanism of dissipation that does not rely on an external source. Using analytical methods, we study a bosonic many body system in two dimensions, with extended interactions between particles. We show that, as expected, the system can be driven out of a coherent state. Surprisingly, when the interaction strength is sufficiently large, the system reenters the superfluid phase even after coherence is lost. The breakdown of quantum coherence is a certainty, but interpreting the process correctly relies on understanding and preserving the nature of the coupling between the constituents of the many particle system. The methods used provide a natural cutoff point at the critical temperature, where superfluidity breaks down. |
| format | Article |
| id | doaj-art-c2587f549e99425abb1135efeca1e9d5 |
| institution | OA Journals |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-c2587f549e99425abb1135efeca1e9d52025-08-20T02:35:40ZengNature PortfolioScientific Reports2045-23222024-05-0114111310.1038/s41598-024-60955-1Reentrant phase behavior in systems with density-induced tunnelingA. Krzywicka0T. P. Polak1Institute of Spintronics and Quantum Information, Faculty of Physics, Adam Mickiewicz Univeristy in PoznańInstitute of Spintronics and Quantum Information, Faculty of Physics, Adam Mickiewicz Univeristy in PoznańAbstract We show that correlations in strongly interacting many-particle systems can create quantum decoherence, leading to a mechanism of dissipation that does not rely on an external source. Using analytical methods, we study a bosonic many body system in two dimensions, with extended interactions between particles. We show that, as expected, the system can be driven out of a coherent state. Surprisingly, when the interaction strength is sufficiently large, the system reenters the superfluid phase even after coherence is lost. The breakdown of quantum coherence is a certainty, but interpreting the process correctly relies on understanding and preserving the nature of the coupling between the constituents of the many particle system. The methods used provide a natural cutoff point at the critical temperature, where superfluidity breaks down.https://doi.org/10.1038/s41598-024-60955-1 |
| spellingShingle | A. Krzywicka T. P. Polak Reentrant phase behavior in systems with density-induced tunneling Scientific Reports |
| title | Reentrant phase behavior in systems with density-induced tunneling |
| title_full | Reentrant phase behavior in systems with density-induced tunneling |
| title_fullStr | Reentrant phase behavior in systems with density-induced tunneling |
| title_full_unstemmed | Reentrant phase behavior in systems with density-induced tunneling |
| title_short | Reentrant phase behavior in systems with density-induced tunneling |
| title_sort | reentrant phase behavior in systems with density induced tunneling |
| url | https://doi.org/10.1038/s41598-024-60955-1 |
| work_keys_str_mv | AT akrzywicka reentrantphasebehaviorinsystemswithdensityinducedtunneling AT tppolak reentrantphasebehaviorinsystemswithdensityinducedtunneling |