Presentation of Collapse Models

Ronald Larson

Jinyang Li

Testing collapse models for macroscopic quantum superpositions using an atomic interferometer without entanglement was recorded at Photonics West 2020, in San Francisco, California.

John Francis Osborne

This paper accompanies the public presentation of a triplicate, constraint-level resolution of the Mott problem. It surveys leading approaches to track formation — including Copenhagen-type interpretations, Everettian frameworks, decoherence accounts, and objective collapse models — and evaluates the extent to which each addresses single-outcome admissibility, track stability, and localisation. The analysis shows that while existing approaches successfully reproduce the phenomenology of cloud-chamber tracks, they do so by introducing additional interpretive or dynamical postulates rather than identifying the minimal constraint conditions under which definite outcomes are licensed. A formal stress test is then developed, demonstrating that any objective collapse model capable of reproducing Mott phenomenology must implicitly encode constraint structures equivalent to symmetry viability, path-stability, and localisation-admissibility functionals. These results position the constraint-level framework, developed within the ψ₀-OCM (Osborne Cosmological Model), as logically minimal and structurally independent of specific collapse dynamics. The paper is intended to clarify the relationship between the constraint architecture and existing theories, providing a companion reference to the triplicate resolution paper and situating the approach within broader work on quantum foundations and measurement.

Mohammad Bahrami, Angelo Bassi, Sandro Donadi +2 more

Philip Pearle

Tamás Geszti

Abstract This is an extended discussion of Ref. [1], presenting a nonlinear dynamical model of quantum collapse, with randomness emerging from self-generated noise. Here we focus on a few issues: 1) the way chaos theory explains “deterministic but unpredictable” as a generic feature of nonlinear dynamics; 2) a new argument about why Bell-CHSH and GHZ experiments confirm quantum mechanics; 3) a discussion of why the heating effect predicted by CSL-type theories is not expected to happen according to our approach; 4) in looking for direct-product solutions of our nonlinear Von Neumann equation, we use a parametrization different from that used in Ref. [1], allowing better insight to the locality issue.