Quantizing speeds with the cosmological constant
- 24 May 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 69 (10) , 104024
- https://doi.org/10.1103/physrevd.69.104024
Abstract
Considering the Barrett-Crane spin foam model for quantum gravity with a (positive) cosmological constant, we show that speeds must be quantized, and we investigate the physical implications of this effect such as the emergence of an effective deformed Poincaré symmetry.Keywords
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