Boundaries in free higher derivative conformal field theories
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Publication:6105659
DOI10.1007/JHEP04(2023)098arXiv2211.14335OpenAlexW4366824673MaRDI QIDQ6105659
Author name not available (Why is that?)
Publication date: 9 June 2023
Published in: (Search for Journal in Brave)
Abstract: 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 -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.
Full work available at URL: https://arxiv.org/abs/2211.14335
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