74 citations · 579 across the 34 of their papers we have counts for
13 papers · 1 filter
Heat kernel coefficients for massive gravity
Renata Ferrero, Markus B. Fröb, William C. C. Lima
We compute the heat kernel coefficients that are needed for the regularization and renormalization of massive gravity. Starting from the Stueckelberg action for massive gravity, we…
Universal definition of the non-conformal trace anomaly
Renata Ferrero, Sebastián A. Franchino-Viñas, Markus B. Fröb +1
We show that there exists a generalized, universal notion of the trace anomaly for theories which are not conformally invariant at the classical level. The definition is suitable f…
Modular Hamiltonian for fermions of small mass
Daniela Cadamuro, Markus B. Fröb, Christoph Minz
We consider the algebra of massive fermions restricted to a diamond in two-dimensional Minkowski spacetime, and in the Minkowski vacuum state. While the massless modular Hamiltonia…
Modular Hamiltonian for de Sitter diamonds
Markus B. Fröb
We determine the Tomita-Takesaki modular data for CFTs in double cone and light cone regions in conformally flat spacetimes. This includes in particular the modular Hamiltonian for…
Trace anomalies for Weyl fermions: too odd to be true?
S. Abdallah, S. A. Franchino-Viñas, M. Fröb
We review recent discussions regarding the parity-odd contribution to the trace anomaly of a chiral fermion. We pay special attention to the perturbative approach in terms of Feynm…
Trace anomaly of Weyl fermions in the Breitenlohner--Maison scheme for
S. Abdallah, S. A Franchino-Viñas, M. B. Fröb
We revisit the conformal anomaly for a Weyl fermion in four dimensions that has generated some debate recently. We employ a perturbative expansion for the metric around Minkowski s…
Graviton corrections to the Newtonian potential using invariant observables
M. B. Fröb, C. Rein, R. Verch
We consider the effective theory of perturbative quantum gravity coupled to a point particle, quantizing fluctuations of both the gravitational field and the particle's position ar…
Deformations of Supergravity and Supersymmetry Anomalies
Markus B. Fröb, Camillo Imbimbo, Nicolò Risso
We present a BRST analysis of supersymmetry anomalies of supersymmetric quantum field theories with anomalous R symmetry. To this end, we consider the coupling of…
Trace anomaly for chiral fermions via Hadamard subtraction
Markus B. Fröb, Jochen Zahn
We calculate the trace (conformal) anomaly for chiral fermions in a general curved background using Hadamard subtraction. While in intermediate steps of the calculation imaginary t…
Quantum corrections for spinning particles in de Sitter
Markus B. Fröb, Enric Verdaguer
We compute the one-loop quantum corrections to the gravitational potentials of a spinning point particle in a de Sitter background, due to the vacuum polarisation induced by confor…
Quantum gravitational corrections for spinning particles
Markus B. Fröb
We calculate the quantum corrections to the gauge-invariant gravitational potentials of spinning particles in flat space, induced by loops of both massive and massless matter field…
Quantum corrections to the gravitational potentials of a point source due to conformal fields in de Sitter
Markus B. Fröb, Enric Verdaguer
We derive the leading quantum corrections to the gravitational potentials in a de Sitter background, due to the vacuum polarization from loops of conformal fields. Our results are…
Mapping AdS to dS spaces and back
Adriana Di Dato, Markus B. Fröb
We derive a map between Einstein spaces of positive and negative curvature, including scalar matter. Starting from a space of positive curvature with some dimensions compactified o…