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arXiv 1310.5950hep-thhep-lat
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Yang-Mills理论的协变分方法

A covariant variational approach to Yang-Mills Theory

Markus Quandt, Hugo Reinhardt, Jan Heffner

摘要:

利用基于有效作用量形式的协变变分原理,研究了Landau规范下SU(N)Yang-Mills理论的低阶格林函数.在库仑规范的哈密顿方法中,采用对先前建立的Faddeev-Popov行列式的近似,导致鬼和胶子传播子的一组封闭的积分方程。我们对这个方程组进行了重整化和红外分析。最后,我们数值求解了重整化系统,并与格点结果和其他泛函方法进行了比较。

英文摘要:

We investigate the low-order Green's functions of SU(N) Yang-Mills theory in Landau gauge, using a covariant variational principle based on the effective action formalism. Employing an approximation to the Faddeev-Popov determinant established previously in the Hamiltonian approach in Coulomb gauge leads to a closed set of integral equations for the ghost and gluon propagator. We carry out the renormalization and the infrared analysis of this system of equations. Finally, we solve the renormalized system numerically and compare with lattice results and other functional approaches.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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