activity
20212026
most citedA stringy realization of a small and positive cosmological constant in dark bubble cosmology

20 citations · 52 across the 6 of their papers we have counts for

collaborators

6 papers

hep-th2026

Self-gravitating electromagnetic waves in the dark bubble model

Ulf Danielsson, Daniel Panizo, Vincent Van Hemelryck

We construct embeddings of gravitational and electromagnetic waves in the dark bubble scenario using pp-wave geometries in AdS5, motivated by the fact that pp-wave spacetimes often…

hep-th2023

Experimental tests of dark bubble cosmology

Ulf Danielsson, Daniel Panizo

In this paper we use -corrections to the -brane action to obtain a non-zero and positive cosmological constant in the induced cosmology living on the dark bubble. Its…

hep-th2023★ 5 cited

Shedding light on dark bubble cosmology

Ivano Basile, Ulf Danielsson, Suvendu Giri +1

Dark bubble cosmology is an alternative paradigm to compactification, which can circumvent issues of moduli stabilization and scale separation. In this paper we investigate how ele…

hep-th2022★ 20 cited

A stringy realization of a small and positive cosmological constant in dark bubble cosmology

Ulf Danielsson, Oscar Henriksson, Daniel Panizo

In this paper we construct a stringy embedding of the dark bubble model of an expanding 4D cosmology with the help of branes rotating in extra dimensions. The universe rides a bubb…

hep-th2022★ 12 cited

Gravitational waves in dark bubble cosmology

Ulf Danielsson, Daniel Panizo, Rob Tielemans

In this paper we construct the 5D uplift of 4D gravitational waves in de Sitter cosmology for the brane world scenario based on a nucleated bubble in AdS5. This makes it possible t…

hep-th2021★ 15 cited

A higher-dimensional view on quantum cosmology

U. H. Danielsson, D. Panizo, R. Tielemans +1

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…