4 papers
Lorentzian Vacuum Transitions in gravity
H. García-Compeán, J. Hernández-Aguilar, D. Mata-Pacheco +1
We study Lorentzian vacuum transition probabilities between two minima of a scalar field potential within the framework of gravity. The analysis extends the previously consi…
Cosmological implications from some proposals in Quantum Gravity
D. Mata-Pacheco
In this thesis we present the cosmological applications of some proposals from Quantum Gravity. Namely, we will explore classical and quantum cosmological implications of the Gener…
Scalar field inflation driven by a modification of the Heisenberg algebra
H. Garcia-Compean, D. Mata-Pacheco
We study the modifications induced on scalar field inflation produced by considering a general modification of the Heisenberg algebra. We proceed by modifying the Poisson brackets…
BTZ quasinormal frequencies as poles of Green's function
A. Lopez-Ortega, D. Mata-Pacheco
Based on the well known fact that the quasinormal frequencies are the poles of the frequency domain Green's function we describe a method that allows us to calculate exactly the qu…