Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I recently came across an article on the arXiv 0709.2042 written by Marco Frasca, where he provides a mapping between classical Yang-Mills theory to $\phi^4$ theory. Has his idea been fruitful in understanding the infrared regime of quantum Yang-Mills theory, as he claims?

share|cite|improve this question
A mathematician named Terry who specializes in analysis argued rather convincing here that the main theorem in Frasca's paper is incorrect. – user1504 Jan 8 '13 at 15:08
Thanks for answering for me but this information is just incomplete. – Jon Sep 20 '13 at 13:31

This theorem was corrected in a published paper as asked by Terry Tao (see here and here). Tao conceded that the new version gives a correct theorem and mapping holds in an approximate way (see here) in the limit of a large coupling that is what one needs in the infrared limit.

Please, before to give incorrect information, just ask the author.

See this post in my blog for an in-depth discussion.

share|cite|improve this answer
Dear Jon, not to conflict with Phys.SE self-citation policy, please spell out explicitly in your answer if you are in any way associated with the author of the paper arXiv:0709.2042. – Qmechanic Sep 20 '13 at 14:24
Dear @Qmechanic, Thanks a lot for pointing this out. Yes I am the author. I thought this would have been clear from my profile where there is a link to my blog with a list of my publications. Somewhat involved but nothing to hide. – Jon Sep 21 '13 at 10:16

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.