New insights on the quantum-classical division in light of Collapse Models

TL;DR

This paper explores the quantum-classical divide through Collapse Models, proposing a thermodynamic phase analogy and supporting the relationship between collapse parameters with experimental data.

Contribution

It introduces a thermodynamic analogy for the quantum-classical transition and links collapse parameters with experimental data, advancing Collapse Model interpretations.

Findings

Collapse parameter and length scale relationship resembles phase coexistence curves

Existing IGEX data supports the proposed relationship

Discussion includes quantum measurement theory and GRW model applications

Abstract

We argue, in light of Collapse Model interpretation of quantum theory, that the fundamental division between the quantum and classical behaviors is analogous to the division of thermodynamic phases. A specific relationship between the collapse parameter $(\lambda)$ and the collapse length scale ($r_C$) plays the role of the coexistence curve in usual thermodynamic phase diagrams. We further claim that our functional relationship between $\lambda$ and $r_C$ is strongly supported by the existing IGEX collaboration data. This result is preceded by a self-contained discussion of quantum measurement theory and the Ghirardi-Rimini-Weber (GRW) model applied to the free wavepacket dynamics.