Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extinction of Epidemics in Lattice Models with Quenched Disorder   The extinction of the contact process in lattice models with quenched
disorder is analysed in the limit of small density of infected sites. It is
shown that the problem in such a regime can be mapped to the quantum-mechanical
one characterized by the Anderson Hamiltonian for an electron in a random
lattice. It is demonstrated both analytically (self-consistent mean-field) and
numerically (by direct diagonalization of the Hamiltonian and by means of
cellular automata simulations) that disorder enhances the contact process given
the mean values of random parameters are not influenced by disorder.

17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas