Quantizing speeds with the cosmological constant
classification
🌀 gr-qc
hep-th
keywords
constantcosmologicalspeedsbarrett-craneconsideringdeformedeffecteffective
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Considering the Barrett-Crane spin foam model for quantum gravity with (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 Poincare symmetry.
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