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arXiv · 1905.07802

Path-integral Monte Carlo study of electronic states in quantum dots in an external magnetic field

Csaba Tőke·Tamás Haidekker Galambos
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Abstract

We explore correlated electron states in harmonically confined few-electron quantum dots in an external magnetic field by the path-integral Monte Carlo method for a wide range of the field and the Coulomb interaction strength. Using the phase structure of a preceding unrestricted Hartree-Fock calculation for phase fixing, we find a rich variety of correlated states, often completely different from the prediction of mean-field theory. These are finite temperature results, but sometimes the correlations saturate with decreasing temperature, providing insight into the ground-state properties.

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Csaba Tőke, Tamás Haidekker Galambos. 2020-01-04. Path-integral Monte Carlo study of electronic states in quantum dots in an external magnetic field. https://doi.org/10.1103/physrevb.100.165136

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