3 papers
gr-qc2019
Emergence of classicality from an inhomogeneous quantum universe
Adamantia Zampeli
We give a short account of the quantisation of the Szekeres spacetime by considering the symmetries of a reduced action principle. This is an alternative approach than the one foll…
hep-th2019
Torsion in quantum field theory through time-loops on Dirac materials
Marcelo F. Ciappina, Alfredo Iorio, Pablo Pais +1
Assuming dislocations could be meaningfully described by torsion, we propose here a scenario based on the role of time in the low-energy regime of two-dimensional Dirac materials,…
gr-qc2016
General Analytic Solutions of Scalar Field Cosmology with Arbitrary Potential
N. Dimakis, A. Karagiorgos, Adamantia Zampeli +3
We present the solution space for the case of a minimally coupled scalar field with arbitrary potential in a FLRW metric. This is made possible due to the existence of a nonlocal i…