Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simple experiment to test a hypothetical transient deviation from
  Quantum Mechanics   Quantum Mechanics (QM) predicts the correlation between measurements
performed in remote regions of a spatially spread entangled state to be higher
than allowed by the intuitive concepts of Locality and Realism (LR). This high
correlation forbids the introduction of nonlinear operators of evolution in QM
(which would be desirable for several reasons), for it would lead to
faster-than-light signaling. As a way out of this situation, it has been
hypothesized that the high quantum correlation can be observed only after a
time longer than L/c has elapsed (where L is the spatial spread of the
entangled state and c is the speed of light). In shorter times, a level of
correlation compatible with LR would be observed instead. A simple model
following this hypothesis is described. It has not been disproved by any of the
performed experiments to date. A test achievable with accessible means is
proposed. The data recorded in a similar but incomplete experiment (which was
done in 2012 with a different purpose, and repeated in 2018 producing
essentially the same results) are analyzed, and are found consistent with the
described model. Yet, we stress that a specific experiment is absolutely
needed.

18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc