Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The holographic Weyl semi-metal   We present a holographic model of a Weyl semi-metal. We show that upon
varying a mass parameter the model undergoes a quantum phase transition from a
topologically non-trivial state to a trivial one. The order parameter for this
phase transition is the anomalous Hall effect (AHE). We give an interpretation
of the results in terms of a holographic RG flow and compare to a weakly
coupled field theoretical model. Since there are no quasiparticle excitations
in the strongly coupled holographic model the topological phase can not be
bound to notions of topology in momentum space.

11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org