Comment on "Nonlocality claims are inconsistent with Hilbert-space quantum mechanics"

TL;DR

This paper clarifies that the Bell inequality's perceived conflict with quantum locality is based on a misinterpretation, and that Griffiths's view of quantum locality remains consistent with the correct understanding of Bell inequalities.

Contribution

It demonstrates that the Bell inequality's supposed inconsistency with quantum locality is a misconception, supporting Griffiths's local interpretation of quantum mechanics.

Findings

Bell inequality does not conflict with quantum locality when correctly understood.

Griffiths's local quantum view is compatible with Bell inequality results.

Misinterpretations of Bell inequalities can lead to false conflicts with locality.

Abstract

The view exists that the Bell inequality is a mere inconsistent application of classical concepts to a well-established quantum world. In the article, ``Nonlocality claims are inconsistent with Hilbert-space quantum mechanics'' [Phys. Rev. A, 101, 022117, (2020)], Robert B. Griffiths advocates for quantum theory's locality. Although R. B. Griffiths presents valuable insights in favor of quantum mechanics' local character, he argues the Bell inequality is an inconsistent application of classical physics to quantum mechanics. We explain why a correct assessment of the Bell inequality does not in fact conflict with Griffiths's views of quantum locality and, on the contrary, it already contemplates them. Hence, Bell inequality inconsistency is not necessary for Griffiths's quantum locality to hold.