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6 papers · 2 filters
Verifying Non-Abelian Statistics by Numerical Braiding Majorana Fermions
Qiu-Bo Cheng, Jing He, Su-Peng Kou
Recently, Majorana fermions (MFs) have attracted intensive attention because of their possible non-Abelian statistics. This paper points out an approach to verify the non-Abelian s…
Triplet paring correlation in doped Kane-Mele-Hubbard model: A quantum Monte Carlo study
Tianxing Ma, Hai-Qing Lin, J. E. Gubernatis
By using the constrained-phase quantum Monte Carlo method, we performed a systematic study of the pairing correlations in the ground state of the doped Kane-Mele-Hubbard model on a…
Strain induced edge magnetism at zigzag edge in graphene quantum dot
Shuai Cheng, Jinming Yu, Tianxing Ma +1
We study the temperature dependent magnetic susceptibility of a strained graphene quantum dot by using the determinant quantum Monte Carlo method. Within the Hubbard model on a hon…
Possible Triplet Superconductivity in Graphene at Low Filling
Tianxing Ma, Fan Yang, Hong Yao +1
We study the Hubbard model on the honeycomb lattice with nearest-neighbor hopping () and next-nearest-neighbor one (). When , the single-particle spectrum is fe…
Magnetic and pairing properties of a two-orbital model for the pnictide superconductors: A quantum Monte Carlo study
Guang-Kun Liu, Zhong-Bing Huang, Yong-Jun Wang
Using the constrained-path Monte Carlo method, a two-orbital model for the pnictide superconductors is studied at half filling and in both the electron- and hole-doped cases. At ha…
Strongly fluctuating fermionic superfluid in attractive π-flux Hubbard model
Ya-Jie Wu, Jiang Zhou, Su-Peng Kou
Ultracold atoms in optical lattice provides a platform to realize the superfluid (SF) state, a quantum order with paired charge-neutral fermions. In this paper, we studied SF state…