Non-interferometric test of the Continuous Spontaneous Localization model based on rotational optomechanics

TL;DR

This paper proposes a novel non-interferometric test using rotational optomechanics to constrain the parameters of the CSL model, addressing unexplored regions in the model's parameter space by analyzing angular momentum diffusion in macroscopic objects.

Contribution

It introduces an untested experimental approach to test CSL using rotational optomechanics, providing new constraints on the model's parameters.

Findings

Angular momentum diffusion constrains CSL parameters.

The proposed test fills gaps in existing experimental bounds.

Macroscopic objects show measurable effects predicted by CSL.

Abstract

The Continuous Spontaneous Localization (CSL) model is the best known and studied among collapse models, which modify quantum mechanics and identify the fundamental reasons behind the unobservability of quantum superpositions at the macroscopic scale. Albeit several tests were performed during the last decade, up to date the CSL parameter space still exhibits a vast unexplored region. Here, we study and propose an unattempted non-interferometric test aimed to fill this gap. We show that the angular momentum diffusion predicted by CSL heavily constrains the parametric values of the model when applied to a macroscopic object.