Publications (43)
(Compactified) black branes in four dimensional f(R)-gravity
N. Dimakis, Alex Giacomini, Andronikos Paliathanasis
A new family of analytical solutions in a four dimensional static spacetime is presented for -gravity. In contrast to General Relativity, we find that a non triv…
Quantization of Einstein-aether Scalar field Cosmology
N. Dimakis, T. Pailas, A. Paliathanasis +3
We present, for the first time, the quantization process for the Einstein-aether scalar field cosmology. We consider a cosmological theory proposed as a Lorentz violating inflation…
Classical and quantum analysis of 3D electromagnetic pp-wave spacetime
T. Pailas, N. Dimakis, A. Karagiorgos +3
The general classical solution of the 3D electromagnetic pp-wave spacetime has been obtained. The relevant line element contains an arbitrary essential function providing an infini…
Time operator from parametrization invariance and implications for cosmology
N. Dimakis
Motivated by the parametrization invariance of cosmological Lagrangians and their equivalence to systems describing the motion of particles in curved backgrounds, we identify the p…
Minisuperspace description of -cosmology
A. Paliathanasis, N. Dimakis, T. Christodoulakis
We investigate the existence of minisuperspace description for the homogeneous cosmological field equations within the framework of symmetric teleparallel -gravity. We consid…
Exact black hole solutions in Einstein-Aether Scalar field theory
N. Dimakis, Genly Leon, Andronikos Paliathanasis
We present exact solutions in Einstein-aether theory in a static spherically symmetric background space with a spacelike aether field, as a difference with the usual selection of t…