Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlinear Screening and Effective Interactions in Charged Colloids   Influences of nonlinear screening on effective interactions between spherical
macroions in charged colloids are described via response theory. Nonlinear
screening, in addition to generating effective many-body interactions, is shown
to entail essential corrections to the pair potential and one-body volume
energy. Numerical results demonstrate that nonlinear effects can substantially
modify effective interactions and thermodynamics of aqueous, low-salt
suspensions of highly-charged macroions.

8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
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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
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con