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Bulk and Surface Critical Behaviors of quantum Heisenberg antiferromagnet on a two-dimensional coupled diagonal ladders
Zhe Wang, Fan Zhang, Wenan Guo
Using Quantum Monte Carlo simulations, we study the spin-1/2 Heisenberg model on a two-dimensional lattice formed by coupling diagonal ladders. The model hosts an antiferromagnetic…
Moiré Band Topology in Twisted Bilayer Graphene
Chao Ma, Qiyue Wang, Scott Mills +9
Recently twisted bilayer graphene (t-BLG) emerges as a new strongly correlated physical platform near a magic twist angle, which hosts many exciting phenomena such as the Mott-like…
Quantum Hall Charge Kondo Criticality
Zhi-qiang Bao, Fan Zhang
The long-thought charge Kondo effects have recently been experimentally realized in the quantum Hall regime. This experiment, supported by numerics, exemplifies the realization of…
Topological Majorana Two-Channel Kondo Effect
Zhi-qiang Bao, Fan Zhang
A one-dimensional time-reversal-invariant topological superconductor hosts a Majorana Kramers pair at each end, where time-reversal symmetry acts as a supersymmetry that flips loca…