On the shoulders of Giants - Quantum gravity and braneworld stability

Details On the shoulders of Giants - Quantum gravity and braneworld stability On the shoulders of Giants - Quantum gravity and braneworld stability

2008-06-19

arxiv.org/abs/0806.3273v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, revtex4 format, 1 figure, v2 minor changes in references

Scientific paper

The semi-classical nature of braneworld cosmological models does not account for any quantum gravitational effects. In this letter we use the gauge/gravity correspondence to argue that quantum string corrections cannot be ignored in any study of braneworld stability. As an example, we find, by analysing the quantum gravitational backreaction, that a closed universe is unstable to radiation into the bulk.

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