165 citations · 471 across the 17 of their papers we have counts for
6 papers · 1 filter
Probing Models of Quantum Decoherence in Particle Physics and Cosmology
Nikolaos E. Mavromatos, Sarben Sarkar
In this review we first discuss the string theoretical motivations for induced decoherence and deviations from ordinary quantum-mechanical behaviour; this leads to intrinsic CPT vi…
Smoothly evolving Supercritical-String Dark Energy relaxes Supersymmetric-Dark-Matter Constraints
A. B. Lahanas, N. E. Mavromatos, D. V. Nanopoulos
We show that Supercritical-String-Cosmology (SSC) off-equilibrium and time-dependent-dilaton effects lead to a smoothly evolving dark energy for the last 10 billion years in concor…
Non-Perturbative Formulation of Non-Critical String Models
Jean Alexandre, John Ellis, Nikolaos E. Mavromatos
We apply to non-critical bosonic Liouville string models, characterized by a central-charge deficit Q, a new non-perturbative renormalization-group technique based on a functional…
Non-Perturbative Formulation of Time-Dependent String Solutions
Jean Alexandre, John Ellis, Nikolaos E. Mavromatos
We formulate here a new world-sheet renormalization-group technique for the bosonic string, which is non-perturbative in the Regge slope alpha' and based on a functional method for…
Confronting Dark Energy Models with Astrophysical Data: Non-Equilibrium vs. Conventional Cosmologies
J. R. Ellis, N. E. Mavromatos, V. A. Mitsou +1
We discuss fits of cosmological dark energy models to the available data on high-redshift supernovae. We consider a conventional model with Cold Dark Matter and a cosmological cons…
Wilsonian renormalization group properties of a novel non-critical cosmological string configuration
J. Alexandre, N. E. Mavromatos
We show that an exact, non-critical-string cosmological configuration of dilaton and graviton backgrounds, found in [1], constitutes an infrared stable fixed point of an exact Wils…