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- W2005190551 abstract "We study the dynamics of a dipolar Bose-Einstein condensate, like, for example, a $^{52}mathrm{Cr}$ or $^{164}mathrm{Dy}$ condensate, interacting with a superconducting surface. The magnetic dipole moments of the atoms in the Bose-Einstein condensate induce eddy currents in the superconductor. The magnetic field generated by eddy currents modifies the trapping potential such that the center-of-mass oscillation frequency is shifted. We numerically solve the Gross-Pitaevskii equation for this system and compare the results with analytical approximations. We present an approximation that gives excellent agreement with the numerical results. The eddy currents give rise to anharmonic terms, which leads to the excitation of shape fluctuations of the condensate. We discuss how the strength of the excitation of such modes can be increased by exploiting resonances, and we examine the strength of the resonances as a function of the center-of-mass oscillation amplitude of the condensate. Finally, we study different orientations of the magnetic dipoles and discuss favorable conditions for the experimental observation of the eddy-current effect." @default.
- W2005190551 created "2016-06-24" @default.
- W2005190551 creator A5011633919 @default.
- W2005190551 creator A5012597979 @default.
- W2005190551 date "2014-11-11" @default.
- W2005190551 modified "2023-10-07" @default.
- W2005190551 title "Dynamics of a dipolar Bose-Einstein condensate in the vicinity of a superconductor" @default.
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- W2005190551 doi "https://doi.org/10.1103/physreva.90.052709" @default.
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