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4 papers · 2 filters
Path-integral Monte Carlo simulations for interacting few-electron quantum dots with spin-orbit coupling
Stephan Weiss, R. Egger
We develop path-integral Monte Carlo simulations for a parabolic two-dimensional (2D) quantum dot containing interacting electrons in the presence of Dresselhaus and/or Rashba…
Rashba spin-orbit coupling and spin precession in carbon nanotubes
A. De Martino, R. Egger
The Rashba spin-orbit coupling in carbon nanotubes and its effect on spin-dependent transport properties are analyzed theoretically. We focus on clean non-interacting nanotubes wit…
Non-Markovian dynamics of double quantum dot charge qubits due to acoustic phonons
M. Thorwart, J. Eckel, E. R. Mucciolo
We investigate the dynamics of a double quantum dot charge qubit which is coupled to piezoelectric acoustic phonons, appropriate for GaAs heterostructures. At low temperatures, the…
Commensurability Effects in Hexagonal Antidot Lattices with Large Antidot Diameters
S. Meckler, T. Heinzel, A. Cavanna +3
The observation of a novel type of commensurability resonance in two-dimensional, hexagonal antidot lattices is reported. These resonances have a classical character and occur at m…