Work

Higher-dimensional view on quantum cosmology

Year: 2021

Type: article

Abstract: We argue that the choice of boundary condition for the wave function in quantum cosmology depends on the UV completion of general relativity. We provide an explicit example using a braneworld scenario in which a de Sitter cosmology is induced on the surface of a Coleman-de Luccia bubble in a 5-dimensional AdS space. The corresponding boundary conditions are unambiguously fixed by demanding consistency with the known physics of bubble nucleation and this selects the Vilenkin weighting for the amplitude from a 4D viewpoint.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.104.086015

Authors: U. H. Danielsson, D. Panizo, R. Tielemans, T. Van Riet

Institutions: Uppsala University, KU Leuven

Language: English

Topic: Noncommutative and Quantum Gravity Theories

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Fonds Wetenschappelijk Onderzoek, KU Leuven, Uppsala Universitet, Centre for Interdisciplinary Mathematics, Uppsala Universitet

Award: G4124116643