论文标题
手性$ p $ - 扭曲双层石墨烯的超导性超导性。
Chiral $p$-wave superconductivity in twisted bilayer graphene from dynamical mean field theory
论文作者
论文摘要
我们将群集动力学均值场理论与精确的二进制杂质杂质求解器应用于魔术角扭曲双层石墨烯的Hubbard模型，该模型建立在Kang and Vafek（2018）提出的紧密结合模型上，该模型适用于Magic Angle Angle Angle Angle $ 1.30^\ circ $。我们发现，$ P+IP $对称性的三胞胎超导率由CDMFT稳定下来，以及一个亚分手单元$ d+id $ state。如实验中所观察到的那样，至少存在接近四分之一填充的级数参数和四分之三的填充。
We apply cluster dynamical mean field theory with an exact-diagonalization impurity solver to a Hubbard model for magic-angle twisted bilayer graphene, built on the tight-binding model proposed by Kang and Vafek (2018), which applies to the magic angle $1.30^\circ$. We find that triplet superconductivity with $p+ip$ symmetry is stabilized by CDMFT, as well as a subdominant singlet $d+id$ state. A minimum of the order parameter exists close to quarter-filling and three-quarter filling, as observed in experiments.
