Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: When are quantum systems operationally independent?   We propose some formulations of the notion of "operational independence" of
two subsystems of a larger quantum system and clarify their relation to other
independence concepts in the literature. In addition, we indicate why the
operational independence of quantum subsystems holds quite generally, both in
nonrelativistic and relativistic quantum theory.

25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess