Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological Weyl Semi-metal from a Lattice Model   We define and study a three dimensional lattice model which displays a Weyl
semi-metallic phase. This model consists of coupled layers of quantum
(anomalous) Hall insulators. The Weyl semi-metallic phase appears between a
resulting quantum Hall insulating phase and a normal insulating phase. Weyl
fermions in this Weyl semi-metal, similar to Dirac fermions in graphene, have
their lattice pseudo-spin locked to their momenta. We investigate surface
states and Fermi arcs, and their evolution for different phases, by exactly
diagonalizing the lattice model as well as by analyzing their topological
origins.

15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th