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hep-th2026
Conformal QED in AdS as a BCFT
Fabiana De Cesare, Simone Giombi
We study conformal Quantum Electrodynamics (QED) coupled to either massless fermions or conformally coupled scalars in Euclidean Anti-de Sitter (AdS) space for $d <…
hep-th2026
Boundary criticality in the Gross-Neveu-Yukawa model at higher orders
Oleksandr Diatlyk, Simone Giombi, Zimo Sun
We extend the study of boundary criticality in the Gross-Neveu-Yukawa universality class beyond leading order. Using the hyperbolic space formulation of boundary conformal field th…
hep-th2026
The phase of de Sitter higher spin gravity
Simone Giombi, Zimo Sun
The one-loop Euclidean partition function on the sphere is known to exhibit a nontrivial phase for massless fields of spin greater than one. Such a phase appears to be in tension w…