The non-Abelian bosonic quantum ring
arXiv:0912.3417 · doi:10.1140/epjd/e2010-00134-4
Abstract
We investigate the dynamics of a spinor Bose-Einstein condensate which is governed by an optically induced non-Abelian gauge potential. Using a ring shaped trap to confine the atoms and a hydrodynamic ansatz, nonlinear Josephson type equations are found to describe the system. The degenerate eigenstates which show rotation are solved exactly. We consider a homogenous filled ring and observe population dynamics between the two quasi-spin components but also space dependent Josephson oscillations. Stable mass currents can be observed which are induced by the constant non-Abelian effective magnetic field in the limit of weak interactions. For strong interactions the appearance of two-component dark soliton-like objects are observed.
10 pages, 9 figures
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Cited by in corpus (4)
- Non-Abelian gauge fields in the gradient expansion: generalized Boltzmann and Eilenberger equations
- Soliton Magnetization Dynamics in Spin-Orbit Coupled Bose-Einstein Condensates
- Spin-orbit-coupled Bose-Einstein-condensed atoms confined in annular potentials
- On the Josephson effect in a Bose-Einstein condensate subject to a density dependent gauge potential