Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Casimir Effect on a Finite Lattice   This article presents a Hamiltonian lattice formulation of static Casimir
systems at a level of generality appropriate for an introductory investigation.
Background structure - represented by a lattice potential V(x) - is introduced
along one spatial direction with translation invariance in all other spatial
directions. Following some general analysis two specific finite one dimensional
lattice QFT systems are analyzed in detail.

37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an