Accès ouvert
2025
article
OpenAlex
Yuejiu Zhao, Long Zhang, Fu‐Chun Zhang
We consider a rhombohedral-stacked $N$-layer graphene coupled to a monolayer of Haldane model. We show that high order Dirac points in multilayer graphene can be gapped out by topological proximity effect of the Haldane model layer, leading to total Chern number $|C|=N+1$ …
cn
(code pays fourni par la source)
Accès ouvert
2024
article
OpenAlex
Yuejiu Zhao, Jian-Jian Miao, Fu‐Chun Zhang
We propose an SSH-BCS-Hubbard chain model and theoretically study the interplay of topology and interaction therein. We obtain the exact solution of the model at the symmetric point. The exact solution reveals that the Hubbard interaction induces ${Z}_{2}$ symmetry breaking, which leads …
cn
(code pays fourni par la source)
2024
article
OpenAlex
Yuejiu Zhao, Long Zhang
Quenched disorders can strongly influence the physical properties of quantum many-body systems. The real-space strong-disorder renormalization group (SDRG) analysis has shown that the spin-1/2 random Heisenberg chain is controlled by the infinite-randomness fixed point (IRFP) and forms a random singlet (RS) ground …
cn
(code pays fourni par la source)
Accès ouvert
2023
preprint
OpenAlex
Yuejiu Zhao, Long Zhang
Quenched disorders can strongly influence the physical properties of quantum many-body systems. The real-space strong-disorder renormalization group (SDRG) analysis has shown that the spin-1/2 random Heisenberg chain is controlled by the infinite-randomness fixed point (IRFP) and forms a random singlet (RS) ground …
cn
(code pays fourni par la source)