3 papers
cond-mat.str-el2021
Lieb-Schultz-Mattis Theorem and the Filling Constraint
Hank Chen
Following recent developments in the classification of bosonic short-range entangled phases, we examine many-body quantum systems whose ground state fractionalization obeys the Lie…
cond-mat.str-el2020
Interacting quantum Hall states in a finite graphene flake and at finite temperature
Hank Chen, Matthew R. C. Fitzpatrick, Sujit Narayanan +2
The integer quantum Hall states at fillings and in monolayer graphene have drawn much attention as they are generated by electron-electron interactions. Here we ex…
cond-mat.mes-hall2019
Connection between the winding number and the Chern number
Han-Ting Chen, Chia-Hsun Chang, Hsien-chung Kao
Bulk-edge correspondence is one of the most distinct properties of topological insulators. In particular, the 1D winding number $\n$ has a one-to-one correspondence to the number o…