Giant vortex in a harmonically-trapped rotating dipolar 164Dy condensate
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We demonstrate the formation of dynamically stable giant vortices in a harmonically-trapped strongly dipolar 164Dy Bose–Einstein condensate under rotation around the polarization direction of dipolar atoms, employing the numerical solution of an improved mean-field model including a Lee-Huang-Yang-type interaction, meant to stop a collapse at high atom density. These giant vortices are stationary, obtainable by imaginary-time propagation using a Gaussian initial state, while the appropriate phase of the giant vortex is imprinted on the initial wave function. The dynamical stability of the giant vortices is established by real-time propagation during a long interval of time after a small change of a parameter.
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Bose-Einstein condensation, Dipolar interaction, Giant vortex, numerical analysis, Vortex formation
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Inglês
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Physica D: Nonlinear Phenomena, v. 475.
