Boundaries in free higher derivative conformal field theories
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Documents
- JHEP04(2023)098
Final published version, 721 KB, PDF document
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.
Original language | English |
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Article number | 98 |
Journal | Journal of High Energy Physics |
Volume | 2023 |
Issue number | 4 |
Number of pages | 54 |
ISSN | 1029-8479 |
DOIs | |
Publication status | Published - 21 Apr 2023 |
- Boundary Quantum Field Theory, Renormalization Group, Scale and Conformal Symmetries, AXIAL LIFSHITZ POINTS, CRITICAL-BEHAVIOR, SEMIINFINITE SYSTEMS, INVARIANCE
Research areas
ID: 346141257