Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: S-matrix interpretation in categorical quantum mechanics   We study the $S$-matrix interpretation of quantum theory in light of
Categotical Quantum Mechanics. The $S$-matrix interpretation of quantum theory
is shown to be a functorial semantics relating the algebras of quantum theory
to the effective $S$-matrix formalism. Consequently, issues such as state
reduction and entanglement generation can be depicted in a simple manner.
Moreover, this categorical $S$-matrix interpretation does not have the alleged
thermodynamic cost.

23
The categories of this paper are: solv-int
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ