Quantum theories with local information flow
- URL: http://arxiv.org/abs/2211.13325v3
- Date: Sat, 30 Sep 2023 21:15:55 GMT
- Title: Quantum theories with local information flow
- Authors: Eduarda Fonseca da Nova Cruz, David M\"ockli
- Abstract summary: Bell non-locality is a term that applies to specific modifications and interpretations of quantum mechanics.
Motivated by Bell's original inequality, we identify four viable categories of quantum theories.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Bell non-locality is a term that applies to specific modifications and
interpretations of quantum mechanics. Yet, Bell's original 1964 theorem is
often used to assert that unmodified quantum mechanics itself is non-local and
that local realist interpretations are untenable. Motivated by Bell's original
inequality, we identify four viable categories of quantum theories: local
quantum mechanics, superdeterminism, non-local collapse quantum mechanics, and
non-local hidden variable theories. These categories, however, are not
restricted by Bell's definition of locality. In light of currently available
no-go theorems, local and deterministic descriptions seem to have been
overlooked, and one possible reason for that could be the conflation between
Bell-locality and a broader principle of locality. We present examples of
theories where a local flow of quantum information is possible, and assess
whether current experimental proposals and an improved philosophy of science
can contrast interpretations and distinguish between them.
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