Boundaries in free higher derivative conformal field theories
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Boundaries in free higher derivative conformal field theories. / Chalabi, Adam; Herzog, Christopher P.; Ray, Krishnendu; Robinson, Brandon; Sisti, Jacopo; Stergiou, Andreas.
I: Journal of High Energy Physics, Bind 2023, Nr. 4, 98, 21.04.2023.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Boundaries in free higher derivative conformal field theories
AU - Chalabi, Adam
AU - Herzog, Christopher P.
AU - Ray, Krishnendu
AU - Robinson, Brandon
AU - Sisti, Jacopo
AU - Stergiou, Andreas
PY - 2023/4/21
Y1 - 2023/4/21
N2 - 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.
AB - 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.
KW - Boundary Quantum Field Theory
KW - Renormalization Group
KW - Scale and Conformal Symmetries
KW - AXIAL LIFSHITZ POINTS
KW - CRITICAL-BEHAVIOR
KW - SEMIINFINITE SYSTEMS
KW - INVARIANCE
U2 - 10.1007/JHEP04(2023)098
DO - 10.1007/JHEP04(2023)098
M3 - Journal article
VL - 2023
JO - Journal of High Energy Physics (Online)
JF - Journal of High Energy Physics (Online)
SN - 1126-6708
IS - 4
M1 - 98
ER -
ID: 346141257