Asymptotics of relativistic spin networks

Asymptotics of relativistic spin networks
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DOI:
10.1088/0264-9381/20/7/307
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发表时间:
2003-04-07
影响因子:
3.5
通讯作者:
Steele, CM
Steele, CM
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Barrett, JW;Steele, CM

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本文用定相技术计算了SO(4)相对论自旋网络的渐近公式。对于四面体自旋网络,这给出了SU(2)6 j-符号的Ponzano-Regge渐近公式的平方。对于4-单纯形(10 j-符号)的渐近公式进行了比较与数值计算的自旋网络评估。最后讨论了SO(3,1)10 j-符号的渐近性。
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.