Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Casimir force between $\delta-\delta^{\prime}$ mirrors transparent at
  high frequencies   We investigate, in the context of a real massless scalar field in $1+1$
dimensions, models of partially reflecting mirrors simulated by Dirac
$\delta-\delta^{\prime}$ point interactions. In the literature, these models do
not exhibit full transparency at high frequencies. In order to provide a more
realistic feature for these models, we propose a modified
$\delta-\delta^{\prime}$ point interaction that enables full transparency in
the limit of high frequencies. Taking this modified $\delta-\delta^{\prime}$
model into account, we investigate the Casimir force, comparing our results
with those found in the literature.

18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph