Emission of Solitons From an Obstacle Moving in the Bose-Einstein Condensate

Dark solitons dynamically generated from a potential moving in a one-dimensional Bose-Einstein condensate are displayed. Based on numerical simulations of the Gross-Pitaevskii equation, we find that the moving obstacle successively emits a series of solitons which propagate at constant speeds. The d...

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Autores principales:	Yu Song, Yu Mo, Shiping Feng, Shi-Jie Yang
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	emission of solitons moving obstacle one-dimensional Bose-Einstein condensate numerical simulations interference Physics QC1-999
Acceso en línea:	https://doaj.org/article/cafa42c90a964fda8952b327ec530a98
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id	oai:doaj.org-article:cafa42c90a964fda8952b327ec530a98
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spelling	oai:doaj.org-article:cafa42c90a964fda8952b327ec530a982021-11-30T11:45:42ZEmission of Solitons From an Obstacle Moving in the Bose-Einstein Condensate2296-424X10.3389/fphy.2021.784564https://doaj.org/article/cafa42c90a964fda8952b327ec530a982021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fphy.2021.784564/fullhttps://doaj.org/toc/2296-424XDark solitons dynamically generated from a potential moving in a one-dimensional Bose-Einstein condensate are displayed. Based on numerical simulations of the Gross-Pitaevskii equation, we find that the moving obstacle successively emits a series of solitons which propagate at constant speeds. The dependence of soliton emission on the system parameters is examined. The formation mechanism of solitons is interpreted as interference between a diffusing wavepacket and the condensate background, enhanced by the nonlinear interactions.PACS numbers: 03.75.Mn, 03.75.Lm, 05.30.JpYu SongYu MoShiping FengShi-Jie YangFrontiers Media S.A.articleemission of solitonsmoving obstacleone-dimensional Bose-Einstein condensatenumerical simulationsinterferencePhysicsQC1-999ENFrontiers in Physics, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	emission of solitons moving obstacle one-dimensional Bose-Einstein condensate numerical simulations interference Physics QC1-999
spellingShingle	emission of solitons moving obstacle one-dimensional Bose-Einstein condensate numerical simulations interference Physics QC1-999 Yu Song Yu Mo Shiping Feng Shi-Jie Yang Emission of Solitons From an Obstacle Moving in the Bose-Einstein Condensate
description	Dark solitons dynamically generated from a potential moving in a one-dimensional Bose-Einstein condensate are displayed. Based on numerical simulations of the Gross-Pitaevskii equation, we find that the moving obstacle successively emits a series of solitons which propagate at constant speeds. The dependence of soliton emission on the system parameters is examined. The formation mechanism of solitons is interpreted as interference between a diffusing wavepacket and the condensate background, enhanced by the nonlinear interactions.PACS numbers: 03.75.Mn, 03.75.Lm, 05.30.Jp
format	article
author	Yu Song Yu Mo Shiping Feng Shi-Jie Yang
author_facet	Yu Song Yu Mo Shiping Feng Shi-Jie Yang
author_sort	Yu Song
title	Emission of Solitons From an Obstacle Moving in the Bose-Einstein Condensate
title_short	Emission of Solitons From an Obstacle Moving in the Bose-Einstein Condensate
title_full	Emission of Solitons From an Obstacle Moving in the Bose-Einstein Condensate
title_fullStr	Emission of Solitons From an Obstacle Moving in the Bose-Einstein Condensate
title_full_unstemmed	Emission of Solitons From an Obstacle Moving in the Bose-Einstein Condensate
title_sort	emission of solitons from an obstacle moving in the bose-einstein condensate
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/cafa42c90a964fda8952b327ec530a98
work_keys_str_mv	AT yusong emissionofsolitonsfromanobstaclemovingintheboseeinsteincondensate AT yumo emissionofsolitonsfromanobstaclemovingintheboseeinsteincondensate AT shipingfeng emissionofsolitonsfromanobstaclemovingintheboseeinsteincondensate AT shijieyang emissionofsolitonsfromanobstaclemovingintheboseeinsteincondensate
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Emission of Solitons From an Obstacle Moving in the Bose-Einstein Condensate

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