Phenomenological approaches to quantum gravity implement a minimum resolvable length-
scale but do not link it to an underlying formalism describing geometric superpositions. Here …

In this paper we study the so called'warp drive'spacetimes within the U 4 Riemann–Cartan
manifolds of Einstein–Cartan theory. Specifically, the role that spin may play with respect to …

We derive the uncertainty principle for a Dirac fermion in a torsion field obeying the Hehl–
Datta (HD) equation. We find out how the non-linear term in the HD equation modifies the …

The aim of this work was to outline the fundamental aspects of Einstein-Cartan theory and to
specialize our results for the case of vectorial torsion. In doing so, we present the full …