Speaker
Athanasios Tzikas
(University of Bergamo)
Description
We investigate possible manifolds characterizing traversable wormholes under the existence of a scalar field that is minimally coupled to gravity and has a kinetic and a potential energy. The feature of traversability requires the violation of the null energy condition followed by the existence of an exotic matter providing a negative energy density to the system. For this reason, we use a hypothetical Casimir apparatus with walls that are considered either parametrically fixed or radially variable.