170 citations · 1.4k across the 25 of their papers we have counts for
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cond-mat.str-el2018★ 131 cited
Multiple topological transitions in twisted bilayer graphene near the first magic angle
Kasra Hejazi, Chunxiao Liu, Hassan Shapourian +2
Recent experiments have observed strongly correlated physics in twisted bilayer graphene (TBG) at very small angles, along with nearly flat electron bands at certain fillings. A go…
cond-mat.stat-mech2018★ 60 cited
Finite-temperature entanglement negativity of free fermions
Hassan Shapourian, Shinsei Ryu
The entanglement entropy of free fermions with a Fermi surface is known to obey a logarithmic scaling and violate the area law in all dimensions. Here, we would like to see how tem…
quant-ph2018★ 105 cited
Entanglement negativity of fermions: monotonicity, separability criterion, and classification of few-mode states
Hassan Shapourian, Shinsei Ryu
We study quantum information aspects of the fermionic entanglement negativity recently introduced in [Phys. Rev. B 95, 165101 (2017)] based on the fermionic partial transpose. In p…