Speaker
Jose Diogo Simao
(FSU Jena)
Description
This talk reports on a recent proposal for a Lorentzian spin-foam coherent amplitude in 2+1 dimensions, defined for an arbitrary combination of space- and time-like edges. The construction makes use of a new set of boundary coherent states, derived from the correspondence between Majorana spinors and space-like 2+1 vectors. The amplitude is shown to recover the Lorentzian Regge action in the semiclassical limit.
Based on arXiv:2401.10324 and arXiv:2402.05993.
Author
Jose Diogo Simao
(FSU Jena)
