Collapse dynamics of a - Bose-Einstein condensate
arXiv:1006.0854 · doi:10.1103/PhysRevA.81.063603
Abstract
In this paper, we present a theoretical study of a two-component Bose-Einstein condensate composed of Ytterbium (Yb) isotopes in a three dimensional anisotropic harmonic potential. The condensate consists of a mixture of atoms which have a negative s-wave scattering length and atoms having a positive s-wave scattering length. We study the ground state as well as dynamic properties of this two-component condensate. Due to the attractive interactions between atoms, the condensate of undergo a collapse when the particle number exceed a critical value. The critical number and the collapse dynamics are modified due to the presence of atoms. We use coupled two-component Gross-Pitaevskii equations to study the collapse dynamics. The theoretical results obtained are in reasonable agreement with the experimental results of Fukuhara {\em et al.} [PRA{\bf 79}, 021601(R) (2009)].
6 pages, 5 figures
References in corpus (13)
- The dynamics of component separation in a binary mixture of Bose-Einstein condensates
- Dynamics of collapsing and exploding Bose-Einstein condensates
- A two atomic species superfluid
- Fortran programs for the time-dependent Gross-Pitaevskii equation in a fully anisotropic trap
- Collapse and Bose-Einstein condensation in a trapped Bose-gas with negative scattering length
- Structure of binary Bose-Einstein condensates
- Two-color photoassociation spectroscopy of ytterbium atoms and the precise determinations of s-wave scattering lengths
- All-Optical Formation of Quantum Degenerate Mixtures
- Intermittent implosion and pattern formation of trapped Bose-Einstein condensates with attractive interaction
- Modulation instability and solitary wave formation in two-component Bose-Einstein condensates
- Explosion of a collapsing Bose-Einstein condensate
- Dynamics of two interacting Bose-Einstein condensates
- Coupled Bose-Einstein condensate: Collapse for attractive interaction