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dc.contributor.author
Jezek, Dora Marta

dc.contributor.author
Capuzzi, Pablo

dc.contributor.author
Cataldo, Horacio Maximo

dc.date.available
2018-05-31T21:53:33Z
dc.date.issued
2016-02
dc.identifier.citation
Jezek, Dora Marta; Capuzzi, Pablo; Cataldo, Horacio Maximo; Dark-soliton collisions in a toroidal Bose-Einstein condensate; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 93; 2; 2-2016; 1-11; 236011
dc.identifier.issn
1050-2947
dc.identifier.uri
http://hdl.handle.net/11336/46938
dc.description.abstract
We study the dynamics of two gray solitons in a Bose-Einstein condensate confined by a toroidal trap with a tight confinement in the radial direction. Gross-Pitaevskii simulations show that solitons can be long-living objects passing through many collisional processes. We have observed quite different behaviors depending on the soliton velocity. Very slow solitons, obtained by perturbing the stationary solitonic profile, move with a constant angular velocity until they collide elastically and move in the opposite direction without showing any sign of lowering their energy. In this case the density notches are always well separated and the fronts are sharp and straight. Faster solitons present vortices around the notches, which play a central role during the collisions. We have found that in these processes the solitons lose energy, as the outgoing velocity turns out to be larger than the incoming one. To study the dynamics, we model the gray soliton state with a free parameter that is related to the soliton velocity. We further analyze the energy, soliton velocity, and turning points in terms of such a free parameter, finding that the main features are in accordance with the infinite one-dimensional system.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society

dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Dark Solitons
dc.subject
Bose-Einstein Condensates
dc.subject.classification
Astronomía

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Ciencias Físicas

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CIENCIAS NATURALES Y EXACTAS

dc.title
Dark-soliton collisions in a toroidal Bose-Einstein condensate
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-05-31T21:01:11Z
dc.journal.volume
93
dc.journal.number
2
dc.journal.pagination
1-11; 236011
dc.journal.pais
Estados Unidos

dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Jezek, Dora Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Capuzzi, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Cataldo, Horacio Maximo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.journal.title
Physical Review A: Atomic, Molecular and Optical Physics

dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.93.023601
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevA.93.023601
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