In spin-orbit-coupled quantum dots, the spin-texture topological charge is shown to be robust to dot ellipticity, tunable by a magnetic field, and equal to -sgn(g) in strong fields, with Coulomb interactions able to reverse it in two-electron dots.
C\^ o t\' e , Wenchen Luo, Branko Petrov, Yafis Barlas, and A
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Tuning the Topological Features of Quantum-Dot Hydrogen and Helium by a Magnetic Field
In spin-orbit-coupled quantum dots, the spin-texture topological charge is shown to be robust to dot ellipticity, tunable by a magnetic field, and equal to -sgn(g) in strong fields, with Coulomb interactions able to reverse it in two-electron dots.