EPRL/FK asymptotics and the flatness problem
Sign Up to like & getrecommendations! Published in 2017 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/aaae82
Abstract: The main topic of this thesis is a key point in testing the viability of the EPRL/FK spin foam model as a quantum theory of gravity. While it is common knowledge that there are fundamental… read more here.
Keywords: quantum; theory; flatness problem; model ... See more keywords
Addendum to ‘EPRL/FK asymptotics and the flatness problem’
Sign Up to like & getrecommendations! Published in 2021 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/abf897
Abstract: 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.… read more here.
Keywords: flatness problem; asymptotics flatness; addendum eprl; eprl asymptotics ... See more keywords
Numerical analysis of spin foam dynamics and the flatness problem
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DOI: 10.1103/physrevd.102.106003
Abstract: In this paper, we apply a recently proposed numerical algorithm for finding stationary phase points in spin foam amplitudes. We study a spin foam amplitude with three vertices and a bulk face in 4d BF… read more here.
Keywords: spin foam; numerical analysis; flatness problem; foam ... See more keywords