Scientific research is a systematic process aimed to build knowledge through a set of structured evaluations, thus generating the development of both the individual that performs research and the society in which it is developed. The objective of research is to produce knowledge, possibly applicable inside and outside researchersénvironments, and perhaps generate practical actions. Research met...

The Plebanski–Demianski solution is a very general axially symmetric analytical solution of Einsteins field equations generalizing the Kerr solution. This solution depends on seven parameters, the mass, a rotation parameter, a cosmological constant, NUT parameter, electric and magnetic charges, and an acceleration. In this paper we present a general description of matter wave interferometry in ...

The applicability of Einsteins relativity theory on galactic scale and the role of geometry for the solution of the problems of observational astrophysics are discussed. The theory of the zero order effect to study the geometrical properties of space-time in experiment is given.

We point out that a background torsion field will produce an effective potential to the K and K̄ with opposite signs. This allows us to constrain the background torsion field from the KL and KS mass difference, CPT violating K ◦ and K̄ mass difference and the CP violating quantities ǫ and η+−. The most stringent bound on the cosmological background torsion 〈T 0〉 < 10−25 GeV comes from the direct ...

We obtain cosmological solutions which admit emergent universe (EU) scenario in the framework of Einstein Gauss-Bonnet gravity coupled with a dilaton field in four dimensions. The coupling parameter of the Gauss-Bonnet terms and the dilaton in the theory are determined for obtaining an EU scenario. The corresponding dilaton potential which admits such scenario is determined. It is found that th...