Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Ali, Sk. Golam"'
We use a variational method to construct soliton solutions for systems characterized by opposing dispersion and competing nonlinearities at fundamental and second harmonics. We show that both ordinary and embedded solitons tend to gain energy when th
Externí odkaz:
http://arxiv.org/abs/0706.0600
Autor:
Ali, Sk. Golam, Talukdar, B.
A Lagrangian based method is used to derive an analytical model for studying the dynamics of matter-wave bright soliton created in a harmonic potential which is attractive in the transverse direction and expulsive in the longitudinal direction. By me
Externí odkaz:
http://arxiv.org/abs/nlin/0609059
We derive a straightforward variational method to construct embedded soliton solutions of the third-order nonlinear Sch\"odinger equation and analytically demonstrate that these solitons exist as a continuous family. We argue that a particular embedd
Externí odkaz:
http://arxiv.org/abs/nlin/0609048
Publikováno v:
Acta Physica Polonica A 289,111(2007)
We study the dynamics of bright solitons in a Bose-Einstein condensate (BEC) confined in a highly asymmetric trap. While working within the f ramework of a variational approach we carry out the stability analysis o f BEC solitons against collapse. Wh
Externí odkaz:
http://arxiv.org/abs/nlin/0607011
Publikováno v:
Acta Physica Polonica B 1993,38(2007)
We couple a nonlinear evolution equation with an associated one and derive the action principle. This allows us to write the Lagrangian density of the system in terms of the original field variables rather than Casimir potentials. We find that the co
Externí odkaz:
http://arxiv.org/abs/nlin/0603037
Publikováno v:
Pramana: Journal of Physics. Jun2009, Vol. 72 Issue 6, p939-950. 12p. 8 Graphs.
Publikováno v:
Pramana: Journal of Physics. Feb2009, Vol. 72 Issue 2, p445-450. 6p. 1 Graph.
Autor:
Ali, Sk. Golam1, Talukdar, B.1 binoy123@bsnl.in
Publikováno v:
European Physical Journal D (EPJ D). May2008, Vol. 47 Issue 3, p315-322. 8p. 7 Graphs.
Publikováno v:
Acta Physica Polonica B. 2007, Vol. 38 Issue 6, p1993-2002. 10p.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.