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Symmetric-gapped surface states of fractional topological insulators SCIE SCOPUS

Title
Symmetric-gapped surface states of fractional topological insulators
Authors
CHO, GIL YOUNGTeo, JeffreyFradkin, Eduardo
Date Issued
2017-10-12
Publisher
AMER PHYSICAL SOC
Abstract
We construct the symmetric-gapped surface states of a fractional topological insulator with an electromagnetic theta angle theta(em) = pi/3 and a discrete Z(3) gauge field. They are the proper generalizations of the T-Pfaffian state and Pfaffian/antisemion state and feature an extended periodicity compared with their "integer" topological band insulator counterparts. We demonstrate that the surface states have the correct anomalies associated with time-reversal symmetry and charge conservation.
URI
https://oasis.postech.ac.kr/handle/2014.oak/96115
DOI
10.1103/PhysRevB.96.161109
ISSN
1098-0121
Article Type
Article
Citation
PHYSICAL REVIEW B, vol. 96, no. 16, 2017-10-12
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