The quantum Poincare group from quantum group contraction
classification
✦ hep-th
keywords
groupquantumcontractiondimensionspoincarpoincaresitteralgebra
read the original abstract
We propose a contraction of the de Sitter quantum group leading to the quantum Poincare group in any dimensions. The method relies on the coaction of the de Sitter quantum group on a non--commutative space, and the deformation parameter $q$ is sent to one. The bicrossproduct structure of the quantum Poincar\'e group is exhibited and shown to be dual to the one of the $\kappa$--Poincar\'e Hopf algebra, at least in two dimensions.
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