124 citations · 439 across the 8 of their papers we have counts for
8 papers
Spontaneous breakdown of topological protection in two dimensions
Jianhui Wang, Yigal Meir, Yuval Gefen
Due to time-reversal symmetry (TRS), two dimensional topological insulators support counter-propagating helical edge modes. Here we show that, unlike the infinitely sharp edge pote…
Fractional Quantum Hall Effects in HgTe Quantum Wells
Jianhui Wang
We study the possibility of fractional quantum Hall effects in HgTe quantum wells using exact diagonalization. Our results show that Laughlin states, the Moore-Read state, and the…
Edge reconstruction in the fractional quantum Hall state
Jianhui Wang, Yigal Meir, Yuval Gefen
The edge structure of the fractional quantum Hall state has been studied for several decades but recent experiments, exhibiting upstream neutral mode(s), a plateau at a Hal…
Network Observability Transitions
Yang Yang, Jianhui Wang, Adilson E. Motter
In the modeling, monitoring, and control of complex networks, a fundamental problem concerns the comprehensive determination of the state of the system from limited measurements. U…
Excitonic Effects in Two-Dimensional Massless Dirac Fermions
Jianhui Wang, H. A. Fertig, Ganpathy Murthy +1
We study excitonic effects in two-dimensional massless Dirac fermions with Coulomb interactions by solving the ladder approximation to the Bethe-Salpeter equation. It is found that…
Critical Behavior in Graphene with Coulomb Interactions
Jianhui Wang, H. A. Fertig, Ganpathy Murthy
We demonstrate that in the presence of Coulomb interactions, electrons in graphene behave like a critical system, supporting power law correlations with interaction-dependent expon…