Comparison of mass renormalization schemes for simple model systems
Comparison of mass renormalization schemes for simple model systems
复制标题
简单模型系统质量重正化方案的比较
DOI：
10.1088/1054-660x/23/3/035302
复制
发表时间：
2013
期刊：
影响因子：
1.2
通讯作者：
R. Grobe
中科院分区：
文献类型：
--
作者：
E. Stefanovich;R. Wagner;Q. Su;R. Grobe
基于真空扇区和单粒子扇区不是自散射的要求，我们讨论了量子场哈密顿量质量重整化的另一种方法。我们用玻色、二次和四次相互作用的具体例子说明了这种方法的可行性。结果与标准重整化技术得到的结果进行了比较，该技术基于通常的场基传播子的谱分析。我们还讨论了一种用计算方法以非微扰方式重新正规化量子场论的势方法。
We discuss an alternative method to mass renormalize a quantum field Hamiltonian based on the requirement that the vacuum and single-particle sectors are not self-scattering. We illustrate the feasibility of this method for the concrete example of bosonic quadratic and quartic interactions. The results are compared with those obtained by the standard renormalization technique based on a spectral analysis of the usual field-based propagators. We also discuss a potential method for renormalizing a quantum field theory in a non-perturbative way using computational methods.