1 citations · 1 across the 2 of their papers we have counts for
5 papers
Wu-Yang ambiguity in connection space
R. Aldrovandi, A. L. Barbosa
Two distinct gauge potentials can have the same field strength, in which case they are said to be ``copies'' of each other. The consequences of this possibility for the general spa…
Spacetime algebraic skeleton
R. Aldrovandi, A. L. Barbosa
The cosmological constant Lambda, which has seemingly dominated the primaeval Universe evolution and to which recent data attribute a significant present-time value, is shown to ha…
Enlarged geometries of gauge bundles
R. Aldrovandi, A. L. Barbosa
The geometrical picture of gauge theories must be enlarged when a gauge potential ceases to behave like a connection, as it does in electroweak interactions. When the gauge group h…
Mixing angle and Glashow's Algebra
A. L. Barbosa
Considering transformations in the basis of fundamental fields on a principal fiber bundle, without modification in the space-time sector, we construct an algebra GA, which we call…
Kinematics of a Spacetime with an Infinite Cosmological Constant
R. Aldrovandi, A. L. Barbosa, M. Calcada +1
A solution of the sourceless Einstein's equation with an infinite value for the cosmological constant Λis discussed by using Inonu-Wigner contractions of the de Sitter groups and s…