43 citations · 133 across the 8 of their papers we have counts for
8 papers
Interplay between curvature and Planck-scale effects in astrophysics and cosmology
Antonino Marciano, Giovanni Amelino-Camelia, Nicola Rossano Bruno +3
Several recent studies have considered the implications for astrophysics and cosmology of some possible nonclassical properties of spacetime at the Planck scale. The new effects, s…
Quantum (anti)de Sitter algebras and generalizations of the kappa-Minkowski space
Angel Ballesteros, N. Rossano Bruno, Francisco J. Herranz
We present two different quantum deformations for the (anti)de Sitter algebras and groups. The former is a non-standard (triangular) deformation of SO(4,2) realized as the conforma…
On 3+1 anti-de Sitter and de Sitter Lie bialgebras with dimensionful deformation parameters
Angel Ballesteros, N. Rossano Bruno, Francisco J. Herranz
We analyze among all possible quantum deformations of the 3+1 (anti)de Sitter algebras, so(3,2) and so(4,1), which have two specific non-deformed or primitive commuting operators:…
Conformal group with two observer independent scales
Nicola Rossano Bruno
The Poincaré sector of a recently deformed conformal algebra is proposed to describe, after the identification of the deformation parameter with the Planck length, the symmetries o…
Non-commutative relativistic spacetimes and worldlines from 2+1 quantum (anti-)de Sitter groups
Angel Ballesteros, N. Rossano Bruno, Francisco J. Herranz
The -deformation of the (2+1)D anti-de Sitter, Poincaré and de Sitter groups is presented through a unified approach in which the curvature of the spacetime (or the cosmological…
A non-commutative Minkowskian spacetime from a quantum AdS algebra
Angel Ballesteros, N Rossano Bruno, Francisco J. Herranz
A quantum deformation of the conformal algebra of the Minkowskian spacetime in dimensions is identified with a deformation of the -dimensional AdS algebra. Both Mink…
A new Doubly Special Relativity theory from a quantum Weyl-Poincare algebra
Angel Ballesteros, N. Rossano Bruno, Francisco J. Herranz
A mass-like quantum Weyl-Poincare algebra is proposed to describe, after the identification of the deformation parameter with the Planck length, a new relativistic theory with two…
Group of boost and rotation transformations with two observer-independent scales
Nicola Rossano Bruno
I examine the structure of the deformed Lorentz transformations in one of the recently-proposed schemes with two observer-independent scales. I develop a technique for the analysis…