Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tracing Monopoles and Anti-monopoles in a Magnetic Hedgehog Lattice   The magnetic hedgehog lattice (HL), which was recently discovered in the
$B$20-type chiral magnet MnSi$_{1-x}$Ge$_x$, is a topological spin texture with
a periodic array of magnetic monopoles and anti-monopoles. Within the continuum
approximation, the monopoles and anti-monopoles are predicted to move, collide,
and pair annihilate in an applied magnetic field, but it remains unclear how
the lattice discretization affects their motions. Here, we study the
trajectories of monopoles and anti-monopoles in a lattice system by simulated
annealing with field sweep. We show that the monopoles and anti-monopoles move
and repel before pair annihilations. We also clarify that their motions are
closely related with the field dependence of the scalar spin chirality.

22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph