Evolutions of matter-wave bright soliton with spatially modulated nonlinearity
Carregando...
Data
2009-09-10
Autores
Cheng, Yongshan [UNESP]
Liu, Fei
Título da Revista
ISSN da Revista
Título de Volume
Editor
Chinese Optics Letters Manuscript Office
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.
Descrição
Palavras-chave
Como citar
Chinese Optics Letters. Shanghai: Chinese Optics Letters Manuscript Office, v. 7, n. 9, p. 834-837, 2009.