Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Divergencies in the Casimir energy for a medium with realistic
  ultraviolet behavior   We consider a dielectric medium with an ultraviolet behavior as it follows
from the Drude model. Compared with dilute models, this has the advantage that,
for large frequencies, two different media behave the same way. As a result one
expects the Casimir energy to contain less divergencies than for the dilute
media approximation. We show that the Casimir energy of a spherical dielectric
ball contains just one divergent term, a volume one, which can be renormalized
by introducing a contact term analogous to the volume energy counterterm needed
in bag models.
  PACS: 12.20.Ds, 03.70.+k, 77.22.Ch

2
The categories of this paper are: math
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg