| Texto completo | |
| Autor(es): |
Número total de Autores: 2
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| Afiliação do(s) autor(es): | [1] Univ Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo - Brazil
[2] Hubei Normal Univ, Dept Phys, Huangshi 435002 - Peoples R China
Número total de Afiliações: 2
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| Tipo de documento: | Artigo Científico |
| Fonte: | CHINESE OPTICS LETTERS; v. 7, n. 9, p. 834-837, SEP 10 2009. |
| Citações Web of Science: | 0 |
| Resumo | |
The evolution characteristics of a matter-wave bright soliton are investigated by means of the variational approach in the presence of spatially varying nonlinearity. It. is found that, the atom density envelope of the soliton is changed as a result of the spatial variation of the s-wave scattering length. The stable soliton can exist in appropriate initial conditions. The movement of the soliton depends on the sign and value of the coefficient of spatially modulated nonlinearity. These theoretical predictions are confirmed by the full numerical simulations of the one-dimensional Gross-Pitaevskii equation. (AU) | |
| Processo FAPESP: | 08/53979-6 - Dynamics of solitons in Bose-Einstein condensate and magnetic films |
| Beneficiário: | Yongshan Cheng |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |