Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observables and unobservables in quantum mechanics: How the
  no-hidden-variables theorems support the Bohmian particle ontology   The paper argues that far from challenging - or even refuting - Bohm's
quantum theory, the no-hidden-variables theorems in fact support the Bohmian
ontology for quantum mechanics. The reason is that (i) all measurements come
down to position measurements and (ii) Bohm's theory provides a clear and
coherent explanation of the measurement outcome statistics based on an ontology
of particle positions, a law for their evolution and a probability measure
linked with that law. What the no-hidden-variables theorems teach us is that
(i) one cannot infer the properties that the physical systems possess from
observables and that (ii) measurements, being an interaction like other
interactions, change the state of the measured system.

6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph