Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Causality and Nonlocality as Axioms for Quantum Mechanics   Quantum mechanics permits nonlocality - both nonlocal correlations and
nonlocal equations of motion - while respecting relativistic causality. Is
quantum mechanics the unique theory that reconciles nonlocality and causality?
We consider two models, going beyond quantum mechanics, of nonlocality:
"superquantum" correlations, and nonlocal "jamming" of correlations. These
models are consistent with some definitions of nonlocality and causality.

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The categories of this paper are: econ
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The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: q-fin
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The categories of this paper are: hep-lat
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg