Numerical simulations show that laser stirring parameters can be varied to deterministically nucleate stable infilled vortices with tunable high topological charge in an immiscible Rb-K BEC, which then exhibit charge-dependent precession and breathing modes.
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cond-mat.quant-gas 2years
2026 2verdicts
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Simplified step-potential model shows critical velocity of BEC superflow minimized to zero at local condensation transition with v_c scaling as L_x to the power -0.963.
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Deterministic Nucleation and Dynamics of Infilled Multiply-Charged Vortices in an Immiscible $^{87}\mathrm{Rb}$-$^{41}\mathrm{K}$ Mixture
Numerical simulations show that laser stirring parameters can be varied to deterministically nucleate stable infilled vortices with tunable high topological charge in an immiscible Rb-K BEC, which then exhibit charge-dependent precession and breathing modes.
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Anomalous minimization for critical velocity of superflow along a step potential
Simplified step-potential model shows critical velocity of BEC superflow minimized to zero at local condensation transition with v_c scaling as L_x to the power -0.963.