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arXiv 0710.0549hep-lat
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SU中的库仑规范格林函数和Gribov副本(2)格点规范理论

Coulomb gauge Green functions and Gribov copies in SU(2) lattice gauge theory

M. Quandt, G. Burgio, S. Chimchinda, H. Reinhardt

摘要:

本文用改进的规范固定方案重新考虑了2+1维和3+1维库仑规范格林函数的格点测量。Gribov副本的影响进行检查,我们发现明确的迹象表明,格林函数的影响比以前假设的更强烈,特别是低动量。定性,我们改进的晶格结果在红外线比较更有利最近连续计算的哈密顿方法。

英文摘要:

We reconsider the lattice measurement of Green functions in Coulomb gauge, both in 2+1 and 3+1 dimensions, using an improved gauge fixing scheme. The influence of Gribov copies is examined and we find clear indications that Green functions are more strongly affected than previously assumed, in particular for low momenta. Qualitatively, our improved lattice results in the infra-red compare more favourably with recent continuum calculations in the Hamiltonian approach.

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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