Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-additive behavior of van der Walls dispersion forces due to material
  and surface geometry effects   We present a series of calculations of van der Waals (vdW) forces that show
non-additive behavior. The results reveal effects of geometrical dependences of
the dispersion forces, that are in strong contradictions to the results from
additivity approaches like the Lennard-Jones (LJ) pairwise interaction and the
proximity force approximation (PFA). For the simple geometries treated here
deviations appear when the effects of the materials are taken into account. We
obtain these results with a general and simple numerical method that allows for
a detailed study of the vdW interactions. The method is also accurate and fast,
and due to its generality makes the study of interactions between
three-dimensional (3D) objects, with arbitrary geometries and configurations,
feasible. We present results for normal, lateral and rotational forces.

11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th