Infrared Sensitivity of Unstable Vacua

Details Infrared Sensitivity of Unstable Vacua Infrared Sensitivity of Unstable Vacua

2010-12-09

arxiv.org/abs/1012.2107v3

Nucl.Phys.B 849 (2011) 410-432

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, references added

Scientific paper

10.1016/j.nuclphysb.2011.03.025

We discover that some unstable vacua have long memory. By that we mean that even in the theories containing only massive particles, there are correllators and expectation values which grow with time. We examine the cases of instabilities caused by the constant electric fields, expanding and contracting universes and, most importantly, the global de Sitter space. In the last case the interaction leads to a remarkable UV/IR mixing and to a large back reaction. This gives reasons to believe that the cosmological constant problem could be resolved by the infrared physics.

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