Relational Quantum Mechanics is About Facts, Not States: A Reply to Pienaar and Brukner

Andrea Di Biagio; Carlo Rovelli

doi:10.1007/s10701-022-00579-5

Relational Quantum Mechanics is About Facts, Not States: A Reply to Pienaar and Brukner

Found Phys. 2022;52(3):62. doi: 10.1007/s10701-022-00579-5. Epub 2022 Jun 7.

Authors

Andrea Di Biagio¹, Carlo Rovelli^{2

3

4}

Affiliations

¹ Dipartimento di Fisica, Sapienza Università di Roma, 00185 Rome, Italy.
² Aix-Marseille University, Université de Toulon, CPT-CNRS, 13288 Marseille, France.
³ Department of Philosophy, The Rotman Institute of Philosophy, 1151 Richmond St. N, London, N6A 5B7 Canada.
⁴ Perimeter Institute, 31 Caroline Street N, Waterloo, ON N2L 2Y5 Canada.

Abstract

In recent works, Časlav Brukner and Jacques Pienaar have raised interesting objections to the relational interpretation of quantum mechanics. We answer these objections in detail and show that, far from questioning the viability of the interpretation, they sharpen and clarify it.

Keywords: Interpretation; Quantum mechanics; RQM; Relational quantum mechanics.