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arXiv · 0907.4325

Regge calculus from a new angle

Benjamin Bahr·Bianca Dittrich
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Abstract

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.

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Benjamin Bahr, Bianca Dittrich. 2009-07-24. Regge calculus from a new angle. https://doi.org/10.1088/1367-2630%2F12%2F3%2F033010

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