Stabilization of bright solitons and vortex solitons in a trapless three-dimensional Bose-Einstein condensate by temporal modulation of the scattering length

Journal Article · Tue Jun 01 00:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.69.063613· OSTI ID:20643807

Adhikari, Sadhan K ^[1]

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1. Instituto de Fisica Teorica, Universidade Estadual Paulista, 01.405-900 Sao Paulo, Sao Paulo (Brazil)

Using variational and numerical solutions of the mean-field Gross-Pitaevskii equation we show that a bright soliton can be stabilized in a trapless three-dimensional attractive Bose-Einstein condensate (BEC) by a rapid periodic temporal modulation of scattering length alone by using a Feshbach resonance. This scheme also stabilizes a rotating vortex soliton in two dimensions. Apart from possible experimental application in BEC, the present study suggests that the spatiotemporal solitons of nonlinear optics in three dimensions can also be stabilized in a layered Kerr medium with sign-changing nonlinearity along the propagation direction.

• OSTI ID: 20643807
• Journal Information: Physical Review. A, Vol. 69, Issue 6; Other Information: DOI: 10.1103/PhysRevA.69.063613; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BOSE-EINSTEIN CONDENSATION
KERR EFFECT
MEAN-FIELD THEORY
MODULATION
NONLINEAR OPTICS
NONLINEAR PROBLEMS
NUMERICAL SOLUTION
PERIODICITY
RESONANCE
SCATTERING LENGTHS
SOLITONS
STABILIZATION
THREE-DIMENSIONAL CALCULATIONS
VARIATIONAL METHODS
VORTICES
WAVE EQUATIONS