Journal
CLASSICAL AND QUANTUM GRAVITY
Volume 38, Issue 11, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6382/abf897
Keywords
spin-foams; loop quantum gravity; classical limit
Categories
Funding
- NSF [1806290]
- Polish National Science Centre Grant [Sheng 1 2018/30/Q/ST2/00811]
- Division Of Physics
- Direct For Mathematical & Physical Scien [1806290] Funding Source: National Science Foundation
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This study shows that removing an approximation used in prior work leads to an improved calculation, resulting in an alternative derivation of the accidental curvature constraint of Hellmann and Kaminski in the studied case. The result is extended to almost all non-degenerate Regge-like boundary data and a wide class of face amplitudes, resolving a tension in the literature.
We show that, when an approximation used in this prior work is removed, the resulting improved calculation yields an alternative derivation, in the particular case studied, of the accidental curvature constraint of Hellmann and Kaminski. The result is at the same time extended to apply to almost all non-degenerate Regge-like boundary data and a broad class of face amplitudes. This resolves a tension in the literature.
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