Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Noise-induced transitions in a double-well excitable oscillator   The model of a double-well oscillator with nonlinear dissipation is studied.
The self-sustained oscillations regime and the excitable one are described. The
first regime consists in the coexistence of two stable limit cycles in the
phase space, which correspond to the self-sustained oscillations of the point
mass in either potential well. The self-sustained oscillations do not occur in
a noise-free system in the excitable regime, but appropriate conditions for
coherence resonance in either potential well can be achieved. The stochastic
dynamics in both two regimes is researched by using numerical simulation and
electronic circuit implementation of the considered system. Multiple
qualitative changes of the probability density function (PDF) caused by noise
intensity varying are explained by using the phase space structure of the
deterministic system.

23
The categories of this paper are: solv-int
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
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys