Vacuum energy sequestering and conformal symmetry

Ido Ben-Dayan, Robert Richter, Fabian Ruehle, Alexander Westphal

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


In a series of recent papers Kaloper and Padilla proposed a mechanism to sequester standard model vacuum contributions to the cosmological constant. We study the consequences of embedding their proposal into a fully local quantum theory. In the original work, the bare cosmological constant Λ and a scaling parameter λ are introduced as global fields. We find that in the local case the resulting Lagrangian is that of a spontaneously broken conformal field theory where λ plays the role of the dilaton. A vanishing or a small cosmological constant is thus a consequence of the underlying conformal field theory structure.

Original languageEnglish
Article number002
JournalJournal of Cosmology and Astroparticle Physics
Issue number5
StatePublished - 3 May 2016
Externally publishedYes


  • dark energy theory
  • gravity


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