Authors: Felix M. Lev
de Sitter symmetry on quantum level implies that operators describing a given system satisfy commutation relations of the de Sitter algebra. This approach gives a new perspective on fundamental notions of quantum theory. We discuss applications of the approach to the cosmological constant problem, gravity, and particle theory.
Comments: 14 Pages. A revised version published in Physical Review D, Vol. 85, Issue 6, 065003 (2012).
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