Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Femtosecond laser driven molecular dynamics on surfaces: Photodesorption
  of molecular oxygen from Ag(110)   We simulate the femtosecond laser induced desorption dynamics of a diatomic
molecule from a metal surface by including the effect of the electron and
phonon excitations created by the laser pulse. Following previous models, the
laser induced surface excitation is treated through the two temperature model,
while the multidimensional dynamics of the molecule is described by a classical
Langevin equation, in which the friction and random forces account for the
action of the heated electrons. In this work, we propose the additional use of
the generalized Langevin oscillator model to also include the effect of the
energy exchange between the molecule and the heated surface lattice in the
desorption dynamics. The model is applied to study the laser induced desorption
of O$_2$ from the Ag(110) surface, making use of a six-dimensional potential
energy surface calculated within density functional theory. Our results reveal
the importance of the phonon mediated process and show that, depending on the
value of the electronic density in the surroundings of the molecule adsorption
site, its inclusion can significantly enhance or reduce the desorption
probabilities.

18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg