8 citations · 9 across the 7 of their papers we have counts for
8 papers
Cosmology in sixth-order higher-derivative theories of gravity
Carlos Aguilar, Manuel Asorey, Diego Muñoz +1
We analyze the cosmological implications of theories of gravity with quadratic curvature invariants and , and six-derivative operators and $C^{μνρ…
Reflection positivity in a higher-derivative model with physical bound states of ghosts
Manuel Asorey, Gastão Krein, Miguel Pardina +1
The inclusion of higher derivatives is a necessary condition for a renormalizable or superrenormalizable local theory of quantum gravity. On the other hand, higher derivatives lead…
Gauge and diffeomorphism invariance from quantum information principles
Claudia Núñez, Miguel Pardina, Manuel Asorey +2
Entanglement is a hallmark of quantum theory, yet it alone does not capture the full extent of quantum complexity: some highly entangled states can still be classically simulated.…
Isospectrality and non-locality of generalized Dirac combs
Giuliano Angelone, Manuel Asorey, Fernando Ezquerro +1
We consider a generalization of Dirac's comb model, describing a non-relativistic particle moving in a periodic array of generalized point interactions. The latter represent the mo…
Matching high and low temperature regimes of massive scalar fields
Manuel Asorey, Fernando Ezquerro
We analyze the matching of high and low temperature expansions of the effective action of massive scalar fields confined between two infinite walls with different boundary conditio…
New vacuum boundary effects of massive field theories
Manuel Asorey, Fernando Ezquerro, Miguel Pardina
Analytical arguments suggest that the Casimir energy in 2+1 dimensions for gauge theories exponentially decays with the distance between the boundaries. The phenomenon has also bee…
Stability of cosmological singularity-free solutions in quadratic gravity
M. Asorey, F. Ezquerro, M. Pardina
We introduce a large family of homogeneous and isotropic cosmological solutions in quadratic gravity which are singularity-free at early and late times. This kind of smooth solutio…
Bound states of massive complex ghosts in superrenormalizable quantum gravity theories\
Manuel Asorey, Gastao Krein, Miguel Pardina +1
One of the remarkable differences between renormalizable quantum gravity with four-derivative action and its superrenormalizable polynomial generalizations is that the latter admit…