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cond-mat1995
Destruction of integer quantum Hall effect at strong disorder: A numerical study
D. N. Sheng, Z. Y. Weng, Q. Gao
A breakdown of integer quantum Hall effect (IQHE) at strong disorder is studied numerically in a lattice model. We find a generic sequence by which the integer quantum Hall plateau…
cond-mat1995
Vanishing spectral weight in a one-hole-doped antiferromagnet: A rigorous result
Z. Y. Weng, C. Y. Chen, D. N. Sheng
By explicitly tracking the Marshall sign, a phase string induced by hopping is revealed in the one-hole-doped model. It is rigorously shown that such a phase string cannot be…