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          Institute: MPI für Gravitationsphysik     Collection: Canonical and Covariant Dynamics of Quantum Gravity     Display Documents



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ID: 436548.0, MPI für Gravitationsphysik / Canonical and Covariant Dynamics of Quantum Gravity
Regge calculus from a new angle
Authors:Bahr, Benjamin; Dittrich, Bianca
Review Status:not specified
Audience:Not Specified
Abstract / Description:In Regge calculus space time is usually approximated by a triangulation with flat simplices. We present a formulation using simplices with constant sectional curvature adjusted to the presence of a cosmological constant. As we will show such a formulation allows to replace the length variables by 3d or 4d dihedral angles as basic variables. Moreover we will introduce a first order formulation, which in contrast to using flat simplices, does not require any constraints. These considerations could be useful for the construction of quantum gravity models with a cosmological constant.
External Publication Status:unpublished
Document Type:Article
Communicated by:Bianca Dittrich
Affiliations:MPI für Gravitationsphysik/Quantum Gravity and Unified Theories
MPI für Gravitationsphysik/Canonical and Covariant Dynamics of Quantum Gravity
Identifiers:LOCALID:arXiv:0907.4325
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0907.4325v1.pdf  [143,00 Kb] [Comment:arXiv:0907.4325v1 [gr-qc]]  
 
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