Some aspects of the planar perturbation series
Some aspects of the planar perturbation series
复制标题
平面摄动级数的一些方面
DOI:
10.1016/0550-3213(77)90344-3
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发表时间:
1977
期刊:
影响因子:
--
通讯作者:
S. Nussinov
中科院分区:
文献类型:
--
作者:
J. Koplik;A. Neveu;S. Nussinov
We discuss several features of the class of planar Feynman diagrams in perturbation theory. We show that the number of planarn-loop diagrams grows exponentially innin any field theory, and calculate the detailed asymptotic behavior for φ3and φ4. We discuss the implications of this result for the convergence of the series and its relation to various semiclassical instabilities, with special reference to non-Abelian gauge theories. We also derive a functional integral equation for planar graphs.