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Spin-Blockade in Single and Double Quantum Dots in Magnetic Fields: a Correlation Effect
Hiroshi Imamura, Hideo Aoki, Peter A. Maksym
The total spin of correlated electrons in a quantum dot changes with magnetic field and this effect is generally linked to the change in the total angular momentum from one magic n…
Symmetry of `molecular' configurations of interacting electrons in a quantum dot in strong magnetic fields
Hiroshi Imamura, Peter A. Maksym, Hideo Aoki
A molecular description for magic-number configurations of interacting electrons in a quantum dot in high magnetic fields developed by one of the authors has been elaborated for fo…
DMRG study of the spin gap in a one dimensional Hubbard model: effect of the distant transfer and exchange coupling
Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki +1
The spin gap of a one-dimensional repulsive Hubbard model is numerically calculated with the density matrix renormalization group, with a special emphasis on the effect of a next-n…
A consistent description of the pairing symmetry in hole and electron doped cuprates within the two dimensional Hubbard model
Kazuhiko Kuroki, Hideo Aoki
Quantum Monte Carlo is used to calculate various pairing correlations of the 2D Hubbard model possessing band features experimentally observed in the cuprates. In the hole-doped ca…
Enhancement of the d_{x^2-y^2} pairing correlation in the two-dimensional Hubbard model: a quantum Monte Carlo study
Kazuhiko Kuroki, Hideo Aoki
Quantum Monte Carlo is used to investigate the possibility of d_{x^2-y^2} superconductivity in the two-dimensional repulsive Hubbard model. A small energy scale relevant to possibl…
Pairing correlation in the two- and three-leg Hubbard ladders --- Renormalization and quantum Monte Carlo studies
Takashi Kimura, Kazuhiko Kuroki, Hideo Aoki
In order to shed light whether the `even-odd conjecture' (even numbers of legs will superconduct accompanied by a spin gap while odd ones do not) for correlated electrons in ladder…