Erratum: Alternative flow equation for the functional renormalization group [Phys. Rev. D 100 , 101702(R) (2019)]
Erratum: Alternative flow equation for the functional renormalization group [Phys. Rev. D 100 , 101702(R) (2019)]
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勘误：函数重正化群的替代流动方程 [Phys。
DOI：
10.1103/physrevd.104.069906
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发表时间：
2021
影响因子：
5
通讯作者：
Alexander E
中科院分区：
文献类型：
--
作者：
Alexander E
我们推导出一个替代的Wetterich-Morris-Ellwanger方程的两粒子不可约（2 PI）的有效作用量，利用由于Garbrecht和Millington的外部来源的方法。后者允许的两点源的2 PI有效的行动是一致的重整化群流的调节器相关联。我们表明，这一过程导致的流量方程，从标准的方法中获得的平均单粒子不可约有效作用的基础上不同。
We derive an alternative to the Wetterich-Morris-Ellwanger equation by means of the two-particle irreducible (2PI) effective action, exploiting the method of external sources due to Garbrecht and Millington. The latter allows the two-point source of the 2PI effective action to be associated consistently with the regulator of the renormalization group flow. We show that this procedure leads to a flow equation that differs from that obtained in the standard approach based on the average one-particle irreducible effective action.