Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fluctuation-induced Topological Quantum Phase Transitions in Quantum
  Spin Hall and Quantum Anomalous Hall Insulators   We investigate the role of quantum fluctuations in topological quantum phase
transitions of quantum spin Hall insulators and quantum anomalous Hall
insulators. Employing the variational cluster approximation to obtain the
single-particle Green's function of the interacting many-body system, we
characterize different phases by direct calculation of the recently proposed
topological order parameter for interacting systems. We pinpoint the influence
of quantum fluctuations on the quantum spin Hall to Mott insulator transition
in several models. Furthermore, we propose a general mechanism by which a
topological quantum phase transition can be driven by the divergence of the
self energy induced by interactions.

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The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th