Infrared sensitivity of unstable vacua

Dmitry Krotov, Alexander M. Polyakov

Research output: Contribution to journalArticlepeer-review

108 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)410-432
Number of pages23
JournalNuclear Physics B
Issue number2
StatePublished - Aug 11 2011

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


  • Backreaction
  • Cosmological constant problem
  • De sitter space
  • IR effects
  • Particle production in constant electric field


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