Violations of locality and free choice are equivalent resources in Bell experiments
Abstract
Faced with a violation of Bell inequalities, a committed realist might pursue an explanation of the observed correlations on the basis of violations of the locality or free choice (sometimes called measurement independence) assumptions. The question of whether it is better to abandon (partially or completely) locality or free choice has been strongly debated since the inception of Bell inequalities, with ardent supporters on either side. We offer a comprehensive treatment that allows a comparison of both assumptions on an equal footing, demonstrating a deep interchangeability. This both advances the foundational debate and provides quantitative answers regarding the weight of each assumption for causal (or realist) explanations of observed correlations.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 22, 2021
- Source ID
- 10.1073/pnas.2020569118
Entities
People
- Christoph Gallus
- Emmanuel M. Pothos
- Ewa Borsuk
- James M. Yearsley
- Pawel Blasiak
Organizations
- Mittelhessen University of Applied Sciences
- Office of Naval Research Global
- Polish Academy of Sciences
- Polish National Agency for Academic Exchange
- University of London