Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2002-09-07
Class.Quant.Grav. 20 (2003) 1341-1362
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
31 pages, latex. v3: minor clarifications
Scientific paper
The stationary phase technique is used to calculate asymptotic formulae for SO(4) Relativistic Spin Networks. For the tetrahedral spin network this gives the square of the Ponzano-Regge asymptotic formula for the SU(2) 6j symbol. For the 4-simplex (10j-symbol) the asymptotic formula is compared with numerical calculations of the Spin Network evaluation. Finally we discuss the asymptotics of the SO(3,1) 10j-symbol.
Barrett John W.
Steele Christopher M.
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