295 citations · 1.9k across the 43 of their papers we have counts for
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Non-local PT-symmetric potentials in the one-dimensional Dirac equation
Francesco Cannata, Alberto Ventura
The Dirac equation in (1+1) dimensions with a non-local PT-symmetric potential of separable type is studied by means of the Green function method: properties of bound and scatterin…
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…
Scalar field cosmological models with finite scale factor singularities
Francesco Cannata, Alexander Yu. Kamenshchik, Daniele Regoli
We construct a scalar field based cosmological model, possessing a cosmological singularity characterized by a finite value of the cosmological radius and an infinite scalar curvat…