Interplay of Coulomb interaction and spin-orbit effects in multi-level quantum dots

Abstract

We study electron transport through a multi-level quantum dot with Rashba spin-orbit interaction in the presence of local Coulomb repulsion. Motivated by recent experiments, we compute the level splitting induced by the spin-orbit interaction at finite Zeeman fields $B$, which provides a measure of the renormalized spin-orbit energy. This level splitting is responsible for the suppression of the Kondo ridges at finite $B$ characteristic for the multi-level structure. In addition, the dependence of renormalized $g$-factors on the relative orientation of the applied $B$ field and the spin-orbit direction following two different protocols used in experiments is investigated.

11 pages, 13 figures

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Cited by in corpus (7)

• Electrically tunable three-dimensional g-factor anisotropy in single InAs self-assembled quantum dots
• Kondo effect in a quantum wire with spin-orbit coupling
• Adiabatic pumping through an interacting quantum dot with spin-orbit coupling
• Super-intense highly anisotropic optical transitions in anisotropic quantum dots
• An Anderson impurity interacting with the helical edge states in a quantum spin Hall insulator
• Natural orbitals renormalization group approach to a spin-1/2 impurity interacting with two helical liquids
• Magnetic correlation between two local spins in a quantum spin Hall insulator