Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Light-induced anomalous Hall effect in massless Dirac fermion systems
  and topological insulators with dissipation   Employing the quantum Liouville equation with phenomenological dissipation,
we investigate the transport properties of massless and massive Dirac fermion
systems that mimics graphene and topological insulators, respectively. The
massless Dirac fermion system does not show an intrinsic Hall effect, but it
shows a Hall current under the presence of circularly-polarized laser fields as
a nature of a optically-driven nonequilibrium state. Based on the microscopic
analysis, we find that the light-induced Hall effect mainly originates from the
imbalance of photocarrier distribution in momentum space although the emergent
Floquet-Berry curvature also has a non-zero contribution. We further compute
the Hall transport property of the massive Dirac fermion system with an
intrinsic Hall effect in order to investigate the interplay of the intrinsic
topological contribution and the extrinsic light-induced population
contribution. As a result, we find that the contribution from the photocarrier
population imbalance becomes significant in the strong field regime and it
overcomes the intrinsic contribution. This finding clearly demonstrates that
intrinsic transport properties of materials can be overwritten by external
driving and may open a way to ultrafast optical-control of transport properties
of materials.

25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
2
The categories of this paper are: math