Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 5, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP05(2011)079
Keywords
Strings and branes phenomenology; Phenomenology of Large extra dimensions
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Funding
- Royal Society University
- Balliol College, Oxford
- Fundacao para a Ciencia e a Tecnologia (Portugal) [SFRH/BD/35756/2007]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/35756/2007] Funding Source: FCT
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We look for ways to destabilise the vacuum. We describe how dense matter environments source a contribution to moduli potentials and analyse the conditions required to initiate either decompactification or a local shift in moduli vevs. We consider astro-physical objects such as neutron stars as well as cosmological and black hole singularities. Regrettably neutron stars cannot destabilise realistic Planck coupled moduli, which would require objects many orders of magnitude denser. However gravitational collapse, either in matter-dominated universes or in black hole formation, inevitably leads to a destabilisation of the compact volume causing a super-inflationary expansion of the extra dimensions.
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