524 citations · 3.4k across the 106 of their papers we have counts for
3 papers · 1 filter
Phantom without phantom or how the PT symmetry saves us from the Big Rip
A. A. Andrianov, F. Cannata, A. Y. Kamenshchik +1
We consider the PT symmetric flat Friedmann model of two scalar fields with positive kinetic terms. While the potential of one ("normal") field is taken real, that of the other fie…
Two-field cosmological models and large-scale cosmic magnetic fields
A. A. Andrianov, F. Cannata, A. Yu. Kamenshchik +1
We consider two different toy cosmological models based on two fields (one normal scalar and one phantom) realizing the same evolution of the Bang-to-Rip type. One of the fields (p…
Parity doubling from Weinberg sum rules
A. A. Andrianov, D. Espriu
We investigate the relation among slopes and intercepts of Regge trajectories for mesons of a given spin and different parities using large N_c arguments and the matching to pertur…