105 citations · 544 across the 22 of their papers we have counts for
22 papers
Polar form of Dirac fields: implementing symmetries via Lie derivative
Luca Fabbri, Stefano Vignolo, Roberto Cianci
We consider the Lie derivative along Killing vector fields of the Dirac relativistic spinors: by using the polar decomposition we acquire the mean to study the implementation of sy…
Integrability of Dirac equations in static spherical space-times
Roberto Cianci, Stefano Vignolo, Luca Fabbri
We consider the Dirac equations in static spherically-symmetric space-times, and we present a type of spinor field whose structure allows the separation of elevation angle and radi…
Spinor fields in -gravity
Stefano Vignolo, Sante Carloni, Roberto Cianci +2
We present a tetrad-affine approach to gravity coupled to spinor fields of spin-1/2. After deriving the field equations, we derive the conservation law of the spin…
A Square-Integrable Spinor Solution to Non-Interacting Dirac Equations
Luca Fabbri, Roberto Cianci, Stefano Vignolo
We consider the Dirac equation written in polar form, without any external potential but equipped with a non-zero tensorial connection, and we find a new type of solution that is l…
Reconstructing isotropic and anisotropic cosmologies
Fabrizio Esposito, Sante Carloni, Roberto Cianci +1
We present a reconstruction algorithm for cosmological models based on gravity. We specifically focus on obtaining exact Bianchi Type-I and Friedmann-Lema\^ıtre-Ro…
The mass-radius relation for neutron stars in gravity: a comparison between purely metric and torsion formulations
Pasquale Feola, Xisco Jimenez Forteza, Salvatore Capozziello +2
Within the framework of gravity, we study realistic models of neutron stars, using equations of state compatible with the LIGO constraints. i.e. APR4, MPA1, SLy, and…