Regular braneworlds with nonlinear bulk-fluids

Autor: Spiros Cotsakis, Ignatios Antoniadis, Ifigeneia Klaoudatou
Přispěvatelé: Laboratoire de Physique Théorique et Hautes Energies (LPTHE), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
High Energy Physics - Theory
dimension: 5
Physics and Astronomy (miscellaneous)
Planck mass
FOS: Physical sciences
QC770-798
General Relativity and Quantum Cosmology (gr-qc)
Astrophysics
Lambda
01 natural sciences
General Relativity and Quantum Cosmology
membrane model
Nuclear and particle physics. Atomic energy. Radioactivity
0103 physical sciences
null-energy condition
Energy condition
010306 general physics
Engineering (miscellaneous)
equation of state
Mathematical physics
fluid
Physics
010308 nuclear & particles physics
Equation of state (cosmology)
[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]
Null (mathematics)
scale: Planck
singularity
QB460-466
High Energy Physics - Theory (hep-th)
gravitation
Content (measure theory)
D-brane: 3
[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]
Gravitational singularity
Brane
Zdroj: European Physical Journal C: Particles and Fields
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2021, 81 (8), pp.771. ⟨10.1140/epjc/s10052-021-09558-y⟩
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 81, Iss 8, Pp 1-15 (2021)
ISSN: 1434-6044
1434-6052
DOI: 10.1140/epjc/s10052-021-09558-y⟩
Popis: We construct a regular five-dimensional brane-world with localised gravity on a flat 3-brane. The matter content in the bulk is parametrised by an analog of a non-linear fluid with equation of state $p=\gamma\rho^\lambda$ between the `pressure' $p$ and the `density' $\rho$ dependent on the 5th dimension. For $\gamma$ negative and $\lambda>1$, the null energy condition is satisfied, and the geometry is free of singularities within finite distance from the brane, while the induced four-dimensional Planck mass is finite.
Comment: 37 pages, 6 figures, final version matches published one
Databáze: OpenAIRE
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