Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fragile Systems: A hidden variable theory for quantum mechanics   The formalism of Quantum Mechanics is derived from the application of
Bayesian probability theory to "fragile" systems, i.e. systems that are
perturbed by the act of measurement. Complex Hilbert spaces, non-commuting
operators and the trace rule for expectations all arise naturally from the use
of linear algebra to solve integral equations involving classical probabilities
over hidden variables. We comment on the case of non-local hidden variables,
where violations of Bell's theorem can be produced, as well as the non-fragile
limit of the theory, where all measurements are commutative and the theory
becomes analogous to classical statistical mechanics.

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The categories of this paper are: cs
2
The categories of this paper are: math
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th