Interacting electrons on a quantum ring: exact and variational approach
arXiv:cond-mat/0511075 · doi:10.1088/1367-2630/8/9/211
Abstract
We study a system of interacting electrons on a one-dimensional quantum ring using exact diagonalization and the variational quantum Monte Carlo method. We examine the accuracy of the Slater-Jastrow -type many-body wave function and compare energies and pair distribution functions obtained from the two approaches. Our results show that this wave function captures most correlation effects. We then study the smooth transition to a regime where the electrons localize in the rotating frame, which for the ultrathin quantum ring system happens at quite high electron density.
19 pages, 10 figures. Accepted for publication in the New Journal of Physics
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Cited by in corpus (10)
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- Pfaffian and fragmented states at nu=5/2 in quantum Hall droplets
- Spin states and persistent currents in a mesoscopic ring with an embedded magnetic impurity
- Fractional periodicity and magnetism of extended quantum rings
- Exchange-correlation potentials for inhomogeneous electron systems in two dimensions from exact diagonalization: comparison with the local-spin-density approximation
- Magnetism in tunable quantum rings
- Fermions with long and finite range interactions on a quantum ring
- Symmetry breaking and restoration on a fermionic quantum ring