Quantcast
  • Register
PhysicsOverflow is a next-generation academic platform for physicists and astronomers, including a community peer review system and a postgraduate-level discussion forum analogous to MathOverflow.

Welcome to PhysicsOverflow! PhysicsOverflow is an open platform for community peer review and graduate-level Physics discussion.

Please help promote PhysicsOverflow ads elsewhere if you like it.

News

PO is now at the Physics Department of Bielefeld University!

New printer friendly PO pages!

Migration to Bielefeld University was successful!

Please vote for this year's PhysicsOverflow ads!

Please do help out in categorising submissions. Submit a paper to PhysicsOverflow!

... see more

Tools for paper authors

Submit paper
Claim Paper Authorship

Tools for SE users

Search User
Reclaim SE Account
Request Account Merger
Nativise imported posts
Claim post (deleted users)
Import SE post

Users whose questions have been imported from Physics Stack Exchange, Theoretical Physics Stack Exchange, or any other Stack Exchange site are kindly requested to reclaim their account and not to register as a new user.

Public \(\beta\) tools

Report a bug with a feature
Request a new functionality
404 page design
Send feedback

Attributions

(propose a free ad)

Site Statistics

205 submissions , 163 unreviewed
5,082 questions , 2,232 unanswered
5,353 answers , 22,789 comments
1,470 users with positive rep
820 active unimported users
More ...

  Anomaly and renormalization procedure choice

+ 3 like - 0 dislike
925 views

I've heard an argument, which provides independence of quantum breaking of naive classical symmetry - so-called anomaly - on regularization choice: If we get non-local (here this means non-polynomial) symmetry breaking term in one regularization, it will appear in other ones, since it can't be removed by adding local counterterm. I don't like this argument. It is insufficiently strict, or it is not finished. Could you please comment this argument and provide alternative (or finish it)?

asked Oct 17, 2016 in Theoretical Physics by NAME_XXX (1,060 points) [ revision history ]
recategorized Oct 18, 2016 by Dilaton

 it will appear in other ones

Do you mean some chirality breaking regularization will happen in other cases, or some non-local chirality breaking regularization will happen in other cases? Although in either case I don't think there can be a general yet rigourous argument for it, without specifying enough other conditions.

@JiaYiyang : I've meaned that the chiral anomaly provides the presence of non-local term in each possible regularization. Then if we observe it in one of regularizations, we can conclude that independently on the regularization type it will appear always.

This isn't quite the case already in lattice regularization: a naively discretized Dirac operator has both exact gauge invariance and chiral invariance, the anomaly manifests itself as the fermion doubling problem.

Your answer

Please use answers only to (at least partly) answer questions. To comment, discuss, or ask for clarification, leave a comment instead.
To mask links under text, please type your text, highlight it, and click the "link" button. You can then enter your link URL.
Please consult the FAQ for as to how to format your post.
This is the answer box; if you want to write a comment instead, please use the 'add comment' button.
Live preview (may slow down editor)   Preview
Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
If you are a human please identify the position of the character covered by the symbol $\varnothing$ in the following word:
p$\hbar$ysic$\varnothing$Overflow
Then drag the red bullet below over the corresponding character of our banner. When you drop it there, the bullet changes to green (on slow internet connections after a few seconds).
Please complete the anti-spam verification




user contributions licensed under cc by-sa 3.0 with attribution required

Your rights
...