Interaction between an Impurity and Nonlinear Excitations in a Polariton Condensate
Exploring the dynamics of a mobile impurity immersed in field excitations is challenging, as it requires to account for the entanglement between the impurity and the surrounding excitations. To this end, the impurity’s effective mass has to be considered as finite, rather than infinite. Here, we the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Entropy |
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| Online Access: | https://www.mdpi.com/1099-4300/24/12/1789 |
| _version_ | 1827639869032103936 |
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| author | Chunyu Jia Zhaoxin Liang |
| author_facet | Chunyu Jia Zhaoxin Liang |
| author_sort | Chunyu Jia |
| collection | DOAJ |
| description | Exploring the dynamics of a mobile impurity immersed in field excitations is challenging, as it requires to account for the entanglement between the impurity and the surrounding excitations. To this end, the impurity’s effective mass has to be considered as finite, rather than infinite. Here, we theoretically investigate the interaction between a finite-mass impurity and a dissipative soliton representing nonlinear excitations in the polariton Bose–Einstein condensate (BEC). Using the Lagrange variational method and the open-dissipative Gross–Pitaevskii equation, we analytically derive the interaction phase diagram between the impurity and a dissipative bright soliton in the polariton BEC. Depending on the impurity mass, we find the dissipative soliton colliding with the impurity can transmit through, get trapped, or be reflected. This work opens a new perspective in understanding the impurity dynamics when immersed in field excitations, as well as potential applications in information processing with polariton solitons. |
| first_indexed | 2024-03-09T16:49:07Z |
| format | Article |
| id | doaj.art-9ec805e92af74c51a834fa571cc5df6b |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-09T16:49:07Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-9ec805e92af74c51a834fa571cc5df6b2023-11-24T14:43:00ZengMDPI AGEntropy1099-43002022-12-012412178910.3390/e24121789Interaction between an Impurity and Nonlinear Excitations in a Polariton CondensateChunyu Jia0Zhaoxin Liang1Department of Physics, Zhejiang Normal University, Jinhua 321004, ChinaDepartment of Physics, Zhejiang Normal University, Jinhua 321004, ChinaExploring the dynamics of a mobile impurity immersed in field excitations is challenging, as it requires to account for the entanglement between the impurity and the surrounding excitations. To this end, the impurity’s effective mass has to be considered as finite, rather than infinite. Here, we theoretically investigate the interaction between a finite-mass impurity and a dissipative soliton representing nonlinear excitations in the polariton Bose–Einstein condensate (BEC). Using the Lagrange variational method and the open-dissipative Gross–Pitaevskii equation, we analytically derive the interaction phase diagram between the impurity and a dissipative bright soliton in the polariton BEC. Depending on the impurity mass, we find the dissipative soliton colliding with the impurity can transmit through, get trapped, or be reflected. This work opens a new perspective in understanding the impurity dynamics when immersed in field excitations, as well as potential applications in information processing with polariton solitons.https://www.mdpi.com/1099-4300/24/12/1789polariton condensatesolitonentanglementopen-dissipative Gross–Pitaevskii equation |
| spellingShingle | Chunyu Jia Zhaoxin Liang Interaction between an Impurity and Nonlinear Excitations in a Polariton Condensate Entropy polariton condensate soliton entanglement open-dissipative Gross–Pitaevskii equation |
| title | Interaction between an Impurity and Nonlinear Excitations in a Polariton Condensate |
| title_full | Interaction between an Impurity and Nonlinear Excitations in a Polariton Condensate |
| title_fullStr | Interaction between an Impurity and Nonlinear Excitations in a Polariton Condensate |
| title_full_unstemmed | Interaction between an Impurity and Nonlinear Excitations in a Polariton Condensate |
| title_short | Interaction between an Impurity and Nonlinear Excitations in a Polariton Condensate |
| title_sort | interaction between an impurity and nonlinear excitations in a polariton condensate |
| topic | polariton condensate soliton entanglement open-dissipative Gross–Pitaevskii equation |
| url | https://www.mdpi.com/1099-4300/24/12/1789 |
| work_keys_str_mv | AT chunyujia interactionbetweenanimpurityandnonlinearexcitationsinapolaritoncondensate AT zhaoxinliang interactionbetweenanimpurityandnonlinearexcitationsinapolaritoncondensate |