Experimental tests of dark bubble cosmology

2023/11/24 by Danielsson, Ulf, Panizo, Daniel · 2 citations
#FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.2311.14589

Abstract

In this paper we use α'²-corrections to the D₃-brane action to obtain a non-zero and positive cosmological constant in the induced cosmology living on the dark bubble. Its measured value, together with the value of the fine structure constant, correspond to a dark dimension of size 5 × 10^-5 m and a string scale at 11 TeV. We conclude that the dark bubble model predicts deviations of Newtonian gravity and stringy excitations of known particles within reach of future experiments.

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• Weak gravity at micron scales from dark bubble cosmology and its cosmological consequences
• Instabilities in scale-separated Casimir vacua

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