Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dirac fermion wave guide networks on topological insulator surfaces   Magnetic texturing on the surface of a topological insulator allows the
design of wave guide networks and beam splitters for domain-wall Dirac
fermions. Guided by simple analytic arguments we model a Dirac fermion
interferometer consisting of two parallel pathways, whereby a newly developed
staggered-grid leap-frog discretization scheme in 2+1 dimensions with absorbing
boundary conditions is employed. The net transmission can be tuned between
constructive to destructive interference, either by variation of the
magnetization (path length) or an applied bias (wave length). Based on this
principle, a Dirac fermion transistor is proposed. Extensions to more general
networks are discussed.

7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex