Infrared instability of the de Sitter space

By A. Polyakov. 2012

135 citations recorded by the source corpus.

We continue to investigate various instabilities of the fixed backgrounds related to the de Sitter space. It is shown that in many cases the in/in perturbation theory contains IR/UV mixing and thus is non-renormalizible. The application of this result to the global de Sitter space leads to the conclusion that even massive particles generate IR divergence and the huge back reaction. The expanding universe is also unstable but in a weaker sense. We further discuss, the strange features of the Gibbons-Hawking radiation and its relation to the above instabilities. .

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/bbc84a7f9b56b103cd4526a3ae76544d1f642b96

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. Robert Brandenberger
2. Jérôme Martin
3. Yi-Fu Cai
4. P. Peter
5. U. Danielsson
6. Yi Wang
7. D. Mattingly
8. Stefano Liberati

In Nuclear and High Energy Physics

1. Jérôme Martin
2. Robert Brandenberger
3. Yi-Fu Cai
4. P. Peter
5. U. Danielsson
6. Emmanuel N. Saridakis
7. E. Wilson-Ewing
8. Stefano Liberati

Citations in the corpus

• Trans-Planckian issues for inflationary cosmology (2012, background): “What about non-perturbative statements? In the context of four space-time dimensional gravity there have been long-standing claims that de Sitter space is unstable [140] (see also [141]).”