Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Localized structures formed through domain wall locking in
  cavity-enhanced second-harmonic generation   We analyze the formation of localized structures in cavity-enhanced
second-harmonic generation. We focus on the phase-matched limit, and consider
that fundamental and generated waves have opposite sign of group velocity
dispersion. We show that these states form due to the locking of domain walls
connecting two stable homogeneous states of the system, and undergo collapsed
snaking. We study the impact of temporal walk-off on the stability and dynamics
of these localized states.

21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an