Noncommutative de Sitter and FRW spaces

The European Physical Journal C

Maja Burić¹  John Madore² 

[1] Faculty of Physics, University of Belgrade, P.O. Box 44, 11001, Belgrade, Serbia;Laboratoire de Physique Théorique, 91405, Orsay, France;

关键词: Tangent Space;    Scalar Curvature;    Position Space;    Noncommutative Geometry;    Differential Calculus;   

DOI  :  10.1140/epjc/s10052-015-3729-6

来源: Springer

【 摘 要 】

Several versions of fuzzy four-dimensional de Sitter space are constructed using the noncommutative frame formalism. Although all noncommutative spacetimes which are found have commutative de Sitter metric as a classical limit, the algebras and the differential calculi which define them have many differences, which we derive and discuss.

【 授权许可】

CC BY