Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nature of segregation of reactants in diffusion controlled A+B
  reactions: Role of mobility in forming compact clusters   We investigate the A+B=0 bimolecular chemical reaction taking place in
low-dimensional spaces when the mobilities of the two reacting species are not
equal. While the case of different reactant mobilities has been previously
reported as not affecting the scaling of the reactant densities with time, but
only the pre-exponential factor, the mechanism for this had not been explained
before. By using Monte-Carlo simulations we show that the nature of segregation
is very different when compared to the normal case of equal reactant
mobilities. The clusters of the mobile species are statistically homogeneous
and randomly distributed in space, but the clusters of the less mobile species
are much more compact and restricted in space. Due to the asymmetric
mobilities, the initial symmetric random density fluctuations in time turn into
asymmetric density fluctuations. We explain this trend by calculating the
correlation functions for the positions of particles for the several different
cases.

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The categories of this paper are: hep-th
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
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The categories of this paper are: comp-gas
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The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex