Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Colloidal gelation, percolation and structural arrest   By means of molecular dynamics, we study a model system for colloidal
suspensions where the interaction is based on a competition between attraction
and repulsion. At low temperatures the relaxation time $\tau$ first increases
as a power law as a function of the volume fraction $\phi$ and then, due to the
finite lifetime of the bonded structures, it deviates from this critical
behavior. We show that colloidal gelation at low temperatures and low volume
fractions is crucially related to the formation of spanning long living
cluster. Besides agreeing with experimental findings in different colloidal
systems, our results shed new light on the different role played by the
formation of long living bonds and the crowding of the particles in colloidal
structural arrest.

14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
2
The categories of this paper are: math