A. Neumaier
Feb22-11, 01:27 PM
I saw your remark from a year ago:
when I was learning QFT two questions began to play through my mind constantly:
What is an interacting QFT nonperturbatively and what is renormalization?
I eventually realised that I needed to understand a bit more about what the mathematical objects in quantum field theory were in order to even phrase this question properly. Eventually I found out that an entire discipline was dedicated to this. So I did my Master Thesis on constructive field theory as a way to force myself to learn the subject. So basically it was all personal study.
You are now climbing the ladder that tells your answer to ''What is an interacting QFT nonperturbatively?''. I know that is already hard work....
But nevertheless I am curious how you'd answer the second question ''What is renormalization?''
By the way, I like it immensely that the discussions with you provide relevant references in a much more efficient way than querying anonymous automata!
when I was learning QFT two questions began to play through my mind constantly:
What is an interacting QFT nonperturbatively and what is renormalization?
I eventually realised that I needed to understand a bit more about what the mathematical objects in quantum field theory were in order to even phrase this question properly. Eventually I found out that an entire discipline was dedicated to this. So I did my Master Thesis on constructive field theory as a way to force myself to learn the subject. So basically it was all personal study.
You are now climbing the ladder that tells your answer to ''What is an interacting QFT nonperturbatively?''. I know that is already hard work....
But nevertheless I am curious how you'd answer the second question ''What is renormalization?''
By the way, I like it immensely that the discussions with you provide relevant references in a much more efficient way than querying anonymous automata!