Boundaries in free higher derivative conformal field theories

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Dokumenter

  • Chalabi, Adam
  • Christopher P. Herzog
  • Krishnendu Ray
  • Brandon Robinson
  • Jacopo Sisti
  • Andreas Stergiou

We consider free higher derivative theories of scalars and Dirac fermions in the presence of a boundary in general dimension. We establish a method for finding consistent conformal boundary conditions in these theories by removing certain boundary primaries from the spectrum. A rich set of renormalization group flows between various conformal boundary conditions is revealed, triggered by deformations quadratic in the boundary primaries. We compute the free energy of these theories on a hemisphere, and show that the boundary a-theorem is generally violated along boundary flows as a consequence of bulk non-unitarity. We further characterize the boundary theory by computing the two-point function of the displacement operator.

OriginalsprogEngelsk
Artikelnummer98
TidsskriftJournal of High Energy Physics
Vol/bind2023
Udgave nummer4
Antal sider54
ISSN1029-8479
DOI
StatusUdgivet - 21 apr. 2023

ID: 346141257