Work

Cosmic Microwave Background Constraints Cast a Shadow On Continuous Spontaneous Localization Models

Year: 2020

Type: article

Abstract: The continuous spontaneous localization model solves the measurement problem of standard quantum mechanics by coupling the mass density of a quantum system to a white-noise field. Since the mass density is not uniquely defined in general relativity, this model is ambiguous when applied to cosmology. We however show that most natural choices of the density contrast already make current measurements of the cosmic microwave background incompatible with other laboratory experiments.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.124.080402

Authors: Jérôme Martin, Vincent Vennin

Institutions: Centre National de la Recherche Scientifique, Institut d'Astrophysique de Paris, Université Pierre-et-Marie-Curie, Université Paris Diderot

Language: English

Topic: Quantum Mechanics and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: Horizon 2020 Framework Programme, H2020 Marie Skłodowska-Curie Actions

Award: Testing Cosmic Inflation and Reheating in the Very Early Universe