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Title: Nature of Continuous Phase Transitions in Interacting Topological Insulators

Journal Article · · Physical Review B

Here, we revisit the effects of the Hubbard repulsion on quantum spin Hall effects (QSHE) in two-dimensional quantum lattice models. We present both unbiased exact diagonalization and density-matrix renormalization group simulations with numerical evidence for a continuous quantum phase transition (CQPT) separating QSHE from the topologically trivial antiferromagnetic phase. Our numerical results suggest that the nature of CQPT exhibits distinct finite-size scaling behaviors, which may be consistent with either Ising or XY universality classes for different time-reversal symmetric QSHE systems.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
AC52-06NA25396; DMR-1205734; DMR-1408560
OSTI ID:
1416285
Alternate ID(s):
OSTI ID: 1408066
Report Number(s):
LA-UR-17-26330; TRN: US1800897
Journal Information:
Physical Review B, Vol. 96, Issue 19; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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Cited By (4)

Interacting topological insulators: a review journal October 2018
Determining topological order from infinite projected entangled pair states journal January 2020
Interacting topological insulators: a review text January 2018
Determining topological order from infinite projected entangled pair states text January 2019

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