218 citations · 855 across the 15 of their papers we have counts for
4 papers · 1 filter
Nature of the Quantum Phase Transition in Quantum Compass Model
Han-Dong Chen, Chen Fang, Jiangping Hu +1
In this work, we show that the quantum compass model on an square lattice can be mapped to a fermionic model with local density interaction. We introduce a mean-field approximation…
Topological Dirac Band Insulators in Three Dimensions and Novel Transport Laws
B. Andrei Bernevig, Han-Dong Chen
This paper has been withdrawn.
Band Collapse and the Quantum Hall Effect in Graphene
B. Andrei Bernevig, Taylor L. Hughes, Han-Dong Chen +2
The recent Quantum Hall experiments in graphene have confirmed the theoretically well-understood picture of the quantum Hall (QH) conductance in fermion systems with continuum Dira…
Two-Point Entanglement Near a Quantum Phase Transition
Han-Dong Chen
In this work, we study the two-point entanglement S(i,j), which measures the entanglement between two separated degrees of freedom (ij) and the rest of system, near a quantum phase…