Nonrenormalizability of the classical statistical approximation
Nonrenormalizability of the classical statistical approximation
复制标题
经典统计近似的不可重整性
DOI:
10.1103/physrevd.90.065029
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发表时间:
2014
影响因子:
5
通讯作者:
Bin Wu
中科院分区:
文献类型:
--
作者:
T. Epelbaum;F. Gelis;Bin Wu
In this paper, we discuss questions related to the renormalizability of the classical statistical approximation, an approximation scheme that has been used recently in several studies of out-of-equilibrium problems in Quantum Field Theory. Although the ultraviolet power counting in this approximation scheme is identical to that of the unapproximated quantum field theory, this approximation is not renormalizable. The leading cause of this non-renormalizability is the breakdown of Weinberg's theorem in this approximation. We also discuss some practical implications of this negative result for simulations that employ this approximation scheme, and we speculate about a possible modification of the classical statistical approximation in order to systematically subtract the leading residual divergences.
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影响因子:
5
作者:
Aarts G
通讯作者:
Aarts G
影响因子:
5
作者:
Berges, Juergen;Boguslavski, Kirill;Schlichting, Soeren
通讯作者:
Schlichting, Soeren
影响因子:
5
作者:
Berges, J.;Boguslavski, K.;Venugopalan, R.
通讯作者:
Venugopalan, R.
DOI:
10.1088/0954-3899/39/8/085115
发表时间:
2012
期刊:
Journal of Physics G
影响因子:
--
作者:
Juergen Berges;Jean-Paul Blaizot;Francois Gelis
通讯作者:
Francois Gelis
影响因子:
5
作者:
Berges, J.;Boguslavski, K.;Venugopalan, R.
通讯作者:
Venugopalan, R.