Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Laser Stimulation of Low-Energy Nuclear Reactions in Deuterated
  Palladium   Models to account for the observed experimental results for low-energy
nuclear reactions in palladium-deuteride systems are presented along with
calculated results. The crucial idea is a mechanism of improved probability for
the needed penetration of the Coulomb barrier for a D-D reaction. This
facilitation occurs, in general, with the formation of D^- ions at special
frequency modes (e.g. via phonons) and, specifically for the laser-stimulated
case, with utilization of enhanced optical potential at a selected interface.
Both mechanisms may work individually, or together, to increase the probability
of barrier penetration.

9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph