Comments on summing over bordisms in TQFT

Anindya Banerjee, Gregory W. Moore

Research output: Contribution to journalArticlepeer-review


Recent works in quantum gravity, motivated by the “factorization problem” and “baby universes,” have considered sums over bordisms with fixed boundaries in topological quantum field theory (TQFT). We discuss this construction and observe a curious splitting formula for the total amplitude.

Original languageEnglish (US)
Article number171
JournalJournal of High Energy Physics
Issue number9
StatePublished - Sep 2022

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


  • 2D Gravity
  • Field Theories in Lower Dimensions
  • Matrix Models
  • Topological Field Theories


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