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On the spacetime connecting two aeons in conformal cyclic cosmology
(Springer, 2015-12-01)
As quotient spaces, Minkowski and de Sitter are fundamental, non-gravitational spacetimes for the construction of physical theories. When general relativity is constructed on a de Sitter spacetime, the usual Riemannian ...
De sitter-invariant approach to cosmology
(Universidade Estadual Paulista (Unesp), 2022-10-20)
A crucial problem of spacetime physics is the lack of a special relativity that could describe the Planck scale kinematics. The problem stems from the existence of an invariant length at the Planck scale, dubbed Planck ...
Some implications of the cosmological constant to fundamental physics
(2007-09-25)
In the presence of a cosmological constant, ordinary Poincaré special relativity is no longer valid and must be replaced by a de Sitter special relativity, in which Minkowski space is replaced by a de Sitter spacetime. In ...
Some implications of the cosmological constant to fundamental physics
(2007-09-25)
In the presence of a cosmological constant, ordinary Poincaré special relativity is no longer valid and must be replaced by a de Sitter special relativity, in which Minkowski space is replaced by a de Sitter spacetime. In ...
de Sitter geodesics: reappraising the notion of motion
(Springer/plenum Publishers, 2012-05-01)
The de Sitter spacetime is transitive under a combination of translations and proper conformal transformations. Its usual family of geodesics, however, does not take into account this property. As a consequence, there are ...
de Sitter geodesics: reappraising the notion of motion
(Springer/plenum Publishers, 2012-05-01)
The de Sitter spacetime is transitive under a combination of translations and proper conformal transformations. Its usual family of geodesics, however, does not take into account this property. As a consequence, there are ...
De Sitter relativity and quantum physics
(2007-12-01)
In the presence of a cosmological constant, interpreted as a purely geometric entity, absence of matter is represented by a de Sitter spacetime. As a consequence, ordinary Poincaré special relativity is no longer valid and ...
De Sitter relativity and quantum physics
(2007-12-01)
In the presence of a cosmological constant, interpreted as a purely geometric entity, absence of matter is represented by a de Sitter spacetime. As a consequence, ordinary Poincaré special relativity is no longer valid and ...