Recent interest on studying possible violations of the Equivalence Principle has led to the development of space satellite missions testing it for bodies moving on circular orbits around Earth. This experiment establishes ...

The energy-momentum tensor of the field produced by an electron with arbitrary movement in a curved space contains a tensor Tμνr with the following properties: (i) vanishing covariant divergence, (ii) null flux across the ...

© 2018 American Physical Society. A new definition of proper time, which may incorporate all of the fundamental interactions as well as the whole Poincaré group, is presented. The new proper time definition reduces to the ...

We perform an internal robustness analysis (iR) to a compilation of the most recent fσ8ðzÞ data, using the framework of Ref. [1]. The method analyzes combinations of subsets in the data set in a Bayesian model comparison ...

We give a procedure by means of which a class of solutions of the SU(2) Yang-Mills equations in Minkowski space-time is obtained. The potentials and field strengths generated by our method are complex. However, the ...

A new approach to the bound-state problem in the frame of quantum electrodynamics is proposed, with special emphasis on the electron-proton bound states. It is an alternative approach to the usual one, which is based on ...

Future cosmic microwave background polarization experiments will search for evidence of primordial tensor modes at large angular scales, in the multipole range 4≤≤50. Because in that range there is some mild evidence of ...

We propose an indirect way to study some solutions of Yang-Mills equations, which is based on the analysis of the following closely related equations: F+A×F=0 and F»+A×F»=0. The former is one of the standard Yang-Mills ...

The Hamiltonian form of the Hilbert action in the first-order tetrad formalism is examined We perform a nonlinear field redefinition of the canonical variables isolating the part of the spin connection which is canonically ...

In this paper, we show how the structure of the landscape potential of the primordial Universe may be probed through the properties of the primordial density perturbations responsible for the origin of the cosmic microwave ...