Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2012-03-07
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
23 pages, 30 figures
Scientific paper
We find all the spin-foams contributing in the first order of the vertex expansion to the transition amplitude of the Bianchi-Rovelli-Vidotto Dipole Cosmology model. Our algorithm is general and provides spin-foams of arbitrarily given, fixed: boundary and, respectively, a number of internal vertices. We use the recently introduced Operator Spin-Network Diagrams framework.
Kisielowski Marcin
Lewandowski Jerzy
Puchta Jacek
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