• 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.


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


(propose a free ad)

Site Statistics

174 submissions , 137 unreviewed
4,308 questions , 1,640 unanswered
5,089 answers , 21,602 comments
1,470 users with positive rep
635 active unimported users
More ...

  Is there precision experimental evidence for Furry's theorem -- that only even degree VEVs are non-zero?

+ 4 like - 0 dislike

Is there precision experimental evidence for or contradicting Furry's theorem -- that only even degree VEVs are non-zero, specifically for the EM field?

This post has been migrated from (A51.SE)
asked Dec 23, 2011 in Theoretical Physics by Peter Morgan (1,200 points) [ no revision ]
retagged Apr 19, 2014 by dimension10
Furry's theorem is a consequence of charge conjugation symmetry in QED. This symmetry is violated by the weak interactions, so I am not sure the theorem is still valid (as a precision experimental fact).

This post has been migrated from (A51.SE)
Thanks, Moshe, I knew I wasn't quite getting the Question right, but I think you've given the Answer to the Question I was trying to ask. Small, because it's electroweak, but I take it there will be odd degree VEVs for the electromagnetic field.

This post has been migrated from (A51.SE)

Please log in or register to answer this question.

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

Your rights