de Sitter special relativity

摘要: A special relativity based on the de Sitter group is introduced, which a theory that might hold up in presence of non-vanishing cosmological constant. Like ordinary relativity, it retains quotient character spacetime, and notion homogeneity. As consequence, underlying spacetime will be whose associated kinematics differ from relativity. The corresponding modified notions energy momentum are obtained, exact relationship between them, invariant under re-scaling involved quantities, explicitly exhibited. Since can considered particular deformation Poincare group, this turns out to specific kind deformed (or doubly) Some experimental consequences, as well causal structure spacetime—modified by horizon—are briefly discussed.