Nonlinear Schrodinger equation with power-law confining potential
Carregando...
Data
2006-07-01
Autores
Holz, Sheila M.
Filho, Victo S.
Tomio, Lauro
Gammal, A.
Título da Revista
ISSN da Revista
Título de Volume
Editor
American Physical Soc
Resumo
Critical limits of a stationary nonlinear three-dimensional Schrodinger equation with confining power-law potentials (similar to r(alpha)) are obtained using spherical symmetry. When the nonlinearity is given by an attractive two-body interaction (negative cubic term), it is shown how the maximum number of particles N-c in the trap increases as alpha decreases. With a negative cubic and positive quintic terms we study a first order phase transition, that occurs if the strength g(3) of the quintic term is less than a critical value g(3c). At the phase transition, the behavior of g(3c) with respect to alpha is given by g(3c)similar to 0.0036+0.0251/alpha+0.0088/alpha(2).
Descrição
Palavras-chave
Como citar
Physical Review A. College Pk: American Physical Soc, v. 74, n. 1, 6 p., 2006.