Universal Deformations

Aleksey Cherman, Theodore N Jacobson, Maria K Neuzil

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


QFTs with local topological operators feature unusual sectors called “universes,” which are separated by infinite-tension domain walls. We show that such systems have relevant deformations with exactly-calculable effects. These deformations allow one to dial the vacuum energy densities of the universes. We describe applications of these deformations to confinement in 2d gauge theories, as well as a curious violation of the effective field theory naturalness principle.

Original languageEnglish (US)
Article number116
JournalSciPost Physics
Issue number4
StatePublished - Apr 2022

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