140 citations · 784 across the 14 of their papers we have counts for
11 papers · 1 filter
Adiabatic approach to the trans-Planckian problem in Loop Quantum Cosmology
Luis J. Garay, Mario López González, Mercedes Martín-Benito +1
We study the scalar modes that, being observable today, were trans-Planckian before inflation, within the context of hybrid Loop Quantum Cosmology (LQC). We analyse the dynamics of…
Hybrid Models in Loop Quantum Cosmology
B. Elizaga Navascués, M. Martín-Benito, G. A. Mena Marugán
In the framework of Loop Quantum Cosmology, inhomogeneous models are usually quantized by means of a hybrid approach that combines loop quantization techniques with standard quantu…
The Quantum Echo of the Early Universe
Ana Blasco, Luis J. Garay, Mercedes Martin-Benito +1
We show that the fluctuations of quantum fields as seen by late comoving observers are significantly influenced by the history of the early Universe, and therefore they transmit in…
Quantum group spin nets: refinement limit and relation to spin foams
Bianca Dittrich, Mercedes Martin-Benito, Sebastian Steinhaus
So far spin foam models are hardly understood beyond a few of their basic building blocks. To make progress on this question, we define analogue spin foam models, so called spin ne…
Echo of the Quantum Bounce
Luis J. Garay, Mercedes Martin-Benito, Eduardo Martin-Martinez
We identify a signature of quantum gravitational effects that survives from the early universe to the current era: Fluctuations of quantum fields as seen by comoving observers are…
Coarse graining methods for spin net and spin foam models
Bianca Dittrich, Frank C. Eckert, Mercedes Martin-Benito
We undertake first steps in making a class of discrete models of quantum gravity, spin foams, accessible to a large scale analysis by numerical and computational methods. In partic…