Configuration interaction method for Fock-Darwin states

Configuration interaction method for Fock-Darwin states

We present a configuration interaction method optimized for Fock-Darwin states of two-dimensional quantum dots with an axially symmetric, parabolic confinement potential subject to a perpendicular magnetic field. The optimization explicitly accounts for geometrical and dynamical symmetries of the Fo...

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Hauptverfasser: Wensauer, Andreas, Korkusinski, Marek, Hawrylak, Pawel
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Korkusinski, Marek
Hawrylak, Pawel
description We present a configuration interaction method optimized for Fock-Darwin states of two-dimensional quantum dots with an axially symmetric, parabolic confinement potential subject to a perpendicular magnetic field. The optimization explicitly accounts for geometrical and dynamical symmetries of the Fock-Darwin single-particle states and for many-particle symmetries associated with the center-of-mass motion and with the total spin. This results in a basis set of reduced size and improved accuracy. The numerical results compare well with the quantum Monte Carlo and stochastic variational methods. The method is illustrated by the evolution of a strongly correlated few-electron droplet in a magnetic field in the regime of the fractional quantum Hall effect.
doi_str_mv 10.48550/arxiv.cond-mat/0304275
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title Configuration interaction method for Fock-Darwin states
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