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Creator | Title | Description | Subject | Date |
1 |
 | Wu, Yong-Shi | Diophantine equation for the three-dimensional quantum Hall effect | When the Fermi level lies in a gap, the Hall conductivity of three-dimensional electrons in a periodic potential is expressed in a topologically invariant form with a set of three integers. If the magnetic fluxes through the three independent areas of the periodic lattice are rational numbers, one... | Hall conductivity; Periodic potentials | 1992-06 |
2 |
 | Wu, Yong-Shi | Mott transition in an anyon gas | We introduce and analyze a lattice model of anyons in a periodic potential and an external magnetic field, which exhibits a transition from a Mott insulator to a quantum Hall fluid. The transition is characterized by the anyon statistics a, which can vary between fermions, a = 0, and bosons, ct - 1... | Anyon gas; Periodic potentials; Mott transition | 1993-11 |
3 |
 | Wu, Yong-Shi | Transitions between the quantum Hall states and insulators induced by periodic potentials | Transitions between two quantum Hall states or between a quantum Hall state and a Mott insulator induced by periodic potentials are studied in the 1 /TV expansion. The transitions are found to be continuous in the large-TV limit and are described by a critical point that depends on a real parameter ... | Periodic potentials; Insulators | 1993-03 |