Unitary unravelling for the Dissipative Continuous Spontaneous Localization model: application to optomechanical experiments

TL;DR

This paper compares dissipative and non-dissipative CSL models in optomechanical experiments, addressing energy conservation issues and providing experimental constraints on the models.

Contribution

It introduces a dissipative extension to the CSL model and analyzes its predictions against experimental data, improving the theoretical consistency of collapse models.

Findings

Dissipative CSL aligns better with energy conservation principles.

Experimental data constrains the parameter space of the models.

Comparison highlights differences in optomechanical predictions.

Abstract

The Continuous Spontaneous Localization (CSL) model strives to describe the quantum-to-classical transition from the viewpoint of collapse models. However, its original formulation suffers from a fundamental inconsistency in that it is explicitly energy non-conserving. Fortunately, a dissipative extension to CSL has been recently formulated that solves such energy-divergence problem. We compare the predictions of the dissipative and non-dissipative CSL models when various optomechanical settings are used, and contrast such predictions with available experimental data, thus building the corresponding exclusion plots.