Gianluca Calcagni, Lefteris Papantonopoulos, George Siopsis, Nikos Tsamis
1 Theoretical Particle Physics and Cosmology, The Niels Bohr Institute, Faculty of Science, Københavns Universitet 2 Theoretical Particle Physics and Cosmology, The Niels Bohr Institute, Faculty of Science, Københavns Universitet
The method of causal dynamical triangulations is a non-perturbative and background-independent approach to quantum theory of gravity. In this review we present recent results obtained within the four dimensional model of causal dynamical triangulations. We describe the phase structure of the model and demonstrate how a macroscopic four-dimensional de Sitter universe emerges dynamically from the full gravitational path integral. We show how to reconstruct the effective action describing scale factor fluctuations from Monte Carlo data. © Springer-Verlag Berlin Heidelberg 2013.
Lecture Notes in Physics, 2013, p. 93-117
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Lecture Notes in Physics. Monographs