Please teach me this:(adsbygoogle = window.adsbygoogle || []).push({});

Why the electromagnetic potential obeys the Callan-Symazik equation in renormalization group theory like propagator functions.By the way,are there any relation between classical potential and interaction Haminton(the product of different field operators).

Thank you very much in advance.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Why the electromagn potential obeys Callan-Symazik equa like Green Function?

**Physics Forums | Science Articles, Homework Help, Discussion**