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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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Detalles Bibliográficos
Autores principales: Jia, Chunyu, Liang, Zhaoxin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9778002/
https://www.ncbi.nlm.nih.gov/pubmed/36554194
http://dx.doi.org/10.3390/e24121789
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author Jia, Chunyu
Liang, Zhaoxin
author_facet Jia, Chunyu
Liang, Zhaoxin
author_sort Jia, Chunyu
collection PubMed
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.
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spelling pubmed-97780022022-12-23 Interaction between an Impurity and Nonlinear Excitations in a Polariton Condensate Jia, Chunyu Liang, Zhaoxin Entropy (Basel) Article 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. MDPI 2022-12-07 /pmc/articles/PMC9778002/ /pubmed/36554194 http://dx.doi.org/10.3390/e24121789 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jia, Chunyu
Liang, Zhaoxin
Interaction between an Impurity and Nonlinear Excitations in a Polariton Condensate
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 Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9778002/
https://www.ncbi.nlm.nih.gov/pubmed/36554194
http://dx.doi.org/10.3390/e24121789
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