Journal
NONLINEAR DYNAMICS
Volume 111, Issue 4, Pages 3653-3664Publisher
SPRINGER
DOI: 10.1007/s11071-022-07986-3
Keywords
Spontaneous symmetry breaking; Bose-Einstein condensate; Nonlinear Schrodinger equation; Double-well potential
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The paper analyzes the spontaneous symmetry breaking induced by a specific component in a linearly coupled binary Bose-Einstein condensate. Through numerical simulations, symmetric and asymmetric ground states are obtained, and induced asymmetry in the partner field is observed, demonstrating the influence of linear coupling on the balance between atomic species and the appearance of Josephson and SSB phases.
The spontaneous symmetry breaking (SSB) induced by a specific component of a linearly coupled binary Bose-Einstein condensate was analyzed. The model is based on linearly coupled Schrodinger equations with cubic nonlinearity and double-well potential acting on only one of the atomic components. By numerical simulations, symmetric and asymmetric ground states were obtained, and an induced asymmetry in the partner field was observed. In this sense, it is adequately demonstrated that the linear coupling mixing the two-field component (Rabi coupling) promotes the (in)balance between the atomic species, as well as the appearance of the Josephson and SSB phases.
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