662 citations · 3.7k across the 108 of their papers we have counts for
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Disappearance of integer quantum Hall effect
D. N. Sheng, Z. Y. Weng
The disappearance of integer quantum Hall effect (IQHE) at strong disorder and weak magnetic field is studied in a lattice model. A generic sequence by which the IQHE plateaus disa…
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…
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…
Delocalization of electrons in a Random Magnetic Field
D. N. Sheng, Z. Y. Weng
Delocalization problem for a two-dimensional non-interacting electron system is studied under a random magnetic field. With the presence of a random magnetic field, the Hall conduc…
Spin-Charge Separation in the Model: Magnetic and Transport Anomalies
Z. Y. Weng, D. N. Sheng, C. S. Ting
A real spin-charge separation scheme is found based on a saddle-point state of the model. In the one-dimensional (1D) case, such a saddle-point reproduces the correct asympto…