Stability window of trapless polariton Bose-Einstein condensates
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevB.105.224315 http://hdl.handle.net/11449/241296 |
Resumo: | We theoretically explore the possibility of stabilizing the trapless polariton Bose-Einstein condensates (pBECs). Exploiting the variational method, we solve the associated nonlinear, complex Gross-Pitaevskii equation and derive the equation of motion for the amplitude and width of the condensate. These variational results described by ordinary differential equations are rewritten to perform a linear stability analysis to generate a stability window in the repulsive domain. A set of coupled nonlinear ordinary differential equations obtained through the variational approach are then solved by numerical simulations through the fourth-order Runge-Kutta method, which are further supported by the split-step Crank-Nicholson method, thereby setting the platform for stable pBECs. In particular, we generate a window containing system parameters in the g1-γeff space within which the system can admit stable condensates. The highlight of the results is that one observes beating effects in the real time evolution of the condensates with attractive interactions much similar to multicomponent BECs, and their periodicity can be varied by manipulating linear and nonlinear loss/gain terms. For repulsive condensates, one notices the stretching of the density. |
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Stability window of trapless polariton Bose-Einstein condensatesWe theoretically explore the possibility of stabilizing the trapless polariton Bose-Einstein condensates (pBECs). Exploiting the variational method, we solve the associated nonlinear, complex Gross-Pitaevskii equation and derive the equation of motion for the amplitude and width of the condensate. These variational results described by ordinary differential equations are rewritten to perform a linear stability analysis to generate a stability window in the repulsive domain. A set of coupled nonlinear ordinary differential equations obtained through the variational approach are then solved by numerical simulations through the fourth-order Runge-Kutta method, which are further supported by the split-step Crank-Nicholson method, thereby setting the platform for stable pBECs. In particular, we generate a window containing system parameters in the g1-γeff space within which the system can admit stable condensates. The highlight of the results is that one observes beating effects in the real time evolution of the condensates with attractive interactions much similar to multicomponent BECs, and their periodicity can be varied by manipulating linear and nonlinear loss/gain terms. For repulsive condensates, one notices the stretching of the density.Institute of Theoretical Physics Unesp - Universidade Estadual PaulistaCentre for Nonlinear Science (CeNSc) Department of Physics Government College for Women (A)Department of Physics Centre for Quantum Science Dodd-Walls Centre for Photonic and Quantum Technologies University of OtagoDepartment of Physics Bharathidasan UniversityInstitute of Theoretical Physics Unesp - Universidade Estadual PaulistaUniversidade Estadual Paulista (UNESP)Government College for Women (A)University of OtagoBharathidasan UniversitySabari, S. [UNESP]Kumar, R. KishorRadha, R.Muruganandam, P.2023-03-01T20:55:41Z2023-03-01T20:55:41Z2022-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevB.105.224315Physical Review B, v. 105, n. 22, 2022.2469-99692469-9950http://hdl.handle.net/11449/24129610.1103/PhysRevB.105.2243152-s2.0-85133683856Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Binfo:eu-repo/semantics/openAccess2023-03-01T20:55:41Zoai:repositorio.unesp.br:11449/241296Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-03-01T20:55:41Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Stability window of trapless polariton Bose-Einstein condensates |
title |
Stability window of trapless polariton Bose-Einstein condensates |
spellingShingle |
Stability window of trapless polariton Bose-Einstein condensates Sabari, S. [UNESP] |
title_short |
Stability window of trapless polariton Bose-Einstein condensates |
title_full |
Stability window of trapless polariton Bose-Einstein condensates |
title_fullStr |
Stability window of trapless polariton Bose-Einstein condensates |
title_full_unstemmed |
Stability window of trapless polariton Bose-Einstein condensates |
title_sort |
Stability window of trapless polariton Bose-Einstein condensates |
author |
Sabari, S. [UNESP] |
author_facet |
Sabari, S. [UNESP] Kumar, R. Kishor Radha, R. Muruganandam, P. |
author_role |
author |
author2 |
Kumar, R. Kishor Radha, R. Muruganandam, P. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Government College for Women (A) University of Otago Bharathidasan University |
dc.contributor.author.fl_str_mv |
Sabari, S. [UNESP] Kumar, R. Kishor Radha, R. Muruganandam, P. |
description |
We theoretically explore the possibility of stabilizing the trapless polariton Bose-Einstein condensates (pBECs). Exploiting the variational method, we solve the associated nonlinear, complex Gross-Pitaevskii equation and derive the equation of motion for the amplitude and width of the condensate. These variational results described by ordinary differential equations are rewritten to perform a linear stability analysis to generate a stability window in the repulsive domain. A set of coupled nonlinear ordinary differential equations obtained through the variational approach are then solved by numerical simulations through the fourth-order Runge-Kutta method, which are further supported by the split-step Crank-Nicholson method, thereby setting the platform for stable pBECs. In particular, we generate a window containing system parameters in the g1-γeff space within which the system can admit stable condensates. The highlight of the results is that one observes beating effects in the real time evolution of the condensates with attractive interactions much similar to multicomponent BECs, and their periodicity can be varied by manipulating linear and nonlinear loss/gain terms. For repulsive condensates, one notices the stretching of the density. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-06-01 2023-03-01T20:55:41Z 2023-03-01T20:55:41Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1103/PhysRevB.105.224315 Physical Review B, v. 105, n. 22, 2022. 2469-9969 2469-9950 http://hdl.handle.net/11449/241296 10.1103/PhysRevB.105.224315 2-s2.0-85133683856 |
url |
http://dx.doi.org/10.1103/PhysRevB.105.224315 http://hdl.handle.net/11449/241296 |
identifier_str_mv |
Physical Review B, v. 105, n. 22, 2022. 2469-9969 2469-9950 10.1103/PhysRevB.105.224315 2-s2.0-85133683856 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review B |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1799965431876812800 |