Quantum Monte Carlo study of circular quantum dots in presence of Rashba interaction

摘要

We performed a quantum Monte Carlo study of a quasi-two-dimensional quantum dot built on a semiconductor quantum well, including the effects of structure inversion asymmetry (SIA) modeled by a Rashba interaction. The quantum dot is in turn modeled as a system of N interacting electrons confined by a parabolic potential of strength We studied the interplay between the strength of the Rashba interaction and We also analyzed the SIA effects on the one-body density and spin-density both for the case of a closed-shell and open-shell dot. In the last case we confirm the prediction of the formation of spin textures.