10 papers
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 <…
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…
Sphere free energy of scalar field theories with cubic interactions
Simone Giombi, Elizabeth Himwich, Andrei Katsevich +2
The dimensional continuation approach to calculating the free energy of -dimensional Euclidean CFT on the round sphere has been used to develop its expansion for a…
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…
CFT in AdS and boundary RG flows
Simone Giombi, Himanshu Khanchandani
Using the fact that flat space with a boundary is related by a Weyl transformation to anti-de Sitter (AdS) space, one may study observables in boundary conformal field theory (BCFT…
Strong coupling expansion of circular Wilson loops and string theories in AdS and AdS
Simone Giombi, Arkady A. Tseytlin
We revisit the problem of matching the strong coupling expansion of the BPS circular Wilson loops in SYM and ABJM gauge theories with their string theory…