Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anomalous temperature dependence of the Casimir force for thin metal
  films   Within the framework of the Drude dispersive model, we predict an unusual
non-monotonous temperature dependence of the Casimir force for thin metal
films. For certain conditions, this force decreases with temperature due to the
decrease of the metallic conductivity, whereas the force increases at high
temperatures due to the increase of the thermal radiation pressure. We consider
the attraction of a film to: either (i) a bulk ideal metal with a planar
boundary, or (ii) a bulk metal sphere (lens). The experimental observation of
the predicted non-monotonous temperature dependence of the Casimir force can
put an end to the long-standing discussion on the role of the electron
relaxation in the Casimir effect.

28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th