4 papers
Equivalence of scalar-tensor theories and scale-dependent gravity
Philipp Neckam, Christian Käding, Benjamin Koch +4
We present a novel equivalence between scale-dependent gravity and scalar-tensor theories that have only a single scalar field with a canonical kinetic term in the Einstein frame a…
Casimir Effect and Gravitational Balance: a Search for Stable Configurations
Leonardo Bellinato Giacomelli, Benjamin Koch, Iva Lovrekovic +1
In this study, we examine the role of the repulsive Casimir force in counteracting the gravitational contraction of a thin spherically symmetric shell. Our main focus is to explore…
Geodesics in Quantum Gravity
Benjamin Koch, Ali Riahinia, Angel Rincon
We investigate the motion of test particles in quantum-gravitational backgrounds by introducing the concept of q--desics, quantum-corrected analogs of classical geodesics. Unlike s…
A Universe from a Lagrangian Fixed Point
Pedro D. Alvarez, Benjamin Koch, Ali Riahinia +1
In this paper, we investigate the theoretical possibility that a Lagrangian fixed point, when applied to cosmological models, can drive dynamical evolution towards a bouncing unive…