Bright solitons in a quasi-one-dimensional reduced model of a dipolar Bose-Einstein condensate with repulsive short-range interactions
| dc.contributor.author | Chiquillo, Emerson | |
| dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
| dc.date.accessioned | 2014-12-03T13:11:22Z | |
| dc.date.available | 2014-12-03T13:11:22Z | |
| dc.date.issued | 2014-08-01 | |
| dc.description.abstract | We study the formation and dynamics of bright solitons in a quasi-one-dimensional reduced mean-field Gross-Pitaevskii equation of a dipolar Bose-Einstein condensate with repulsive short-range interactions. The study is carried out using a variational approximation and a numerical solution. Plots of chemical potential and root mean square (rms) size of solitons are obtained for the quasi-one-dimensional model of three different dipolar condensates of Cr-52, Er-168 and Dy-164 atoms. The results achieved are in good agreement with those produced by the full three-dimensional mean-field model of the condensate. We also study the dynamics of the collision of a train of two solitons in the quasi-one-dimensional model of every condensate above. At small velocities (zero or close to zero) the dynamics is attractive for a phase difference delta = 0, the solitons coalesce and these oscillate, forming a bound soliton molecule. For a phase difference delta = pi the effect is repulsive. At large velocities the collision is independent of the initial phase difference delta. This is quasi-elastic and the result is two quasi-solitons. | en |
| dc.description.affiliation | UNESP Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, Brazil | |
| dc.description.affiliationUnesp | UNESP Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, Brazil | |
| dc.description.sponsorship | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | |
| dc.format.extent | 8 | |
| dc.identifier | http://dx.doi.org/10.1088/1054-660X/24/8/085502 | |
| dc.identifier.citation | Laser Physics. Bristol: Iop Publishing Ltd, v. 24, n. 8, 8 p., 2014. | |
| dc.identifier.doi | 10.1088/1054-660X/24/8/085502 | |
| dc.identifier.issn | 1054-660X | |
| dc.identifier.uri | http://hdl.handle.net/11449/113046 | |
| dc.identifier.wos | WOS:000339322800031 | |
| dc.language.iso | eng | |
| dc.publisher | Iop Publishing Ltd | |
| dc.relation.ispartof | Laser Physics | |
| dc.relation.ispartofjcr | 1.158 | |
| dc.rights.accessRights | Acesso restrito | |
| dc.source | Web of Science | |
| dc.subject | dipolar Bose-Einstein condensate | en |
| dc.subject | dimensional reduction | en |
| dc.subject | bright solitons | en |
| dc.title | Bright solitons in a quasi-one-dimensional reduced model of a dipolar Bose-Einstein condensate with repulsive short-range interactions | en |
| dc.type | Artigo | |
| dcterms.license | http://iopscience.iop.org/page/copyright | |
| dcterms.rightsHolder | Iop Publishing Ltd | |
| unesp.campus | Universidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulo | pt |