Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum-Mechanical Correlations and Tsirelson Bound from Geometric
  Algebra   The Bell-Clauser-Horne-Shimony-Holt inequality can be used to show that no
local hidden-variable theory can reproduce the correlations predicted by
quantum mechanics (QM). It can be proved that certain QM correlations lead to a
violation of the classical bound established by the inequality, while all
correlations, QM and classical, respect a QM bound (the Tsirelson bound). Here,
we show that these well-known results depend crucially on the assumption that
the values of physical magnitudes are scalars. The result implies, first, that
the origin of the Tsirelson bound is geometrical, not physical; and, second,
that a local hidden-variable theory does not contradict QM if the values of
physical magnitudes are vectors.

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The categories of this paper are: physics
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
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The categories of this paper are: nlin
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
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The categories of this paper are: cmp-lg
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The categories of this paper are: eess
26
The categories of this paper are: bayes-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom