Register

Adv. Query

Q&A (4831)

Reviews (201)

Open problems (45)
Meta (437)

Site Statistics

205 submissions , 163 unreviewed
5,054 questions , 2,207 unanswered
5,345 answers , 22,720 comments
1,470 users with positive rep
818 active unimported users
More ...

In a spinning electron, does charge rotate faster than mass or viceversa?

694 views

Schwinger showed that for a charged elementary fermion, the g-factor obeys g/2 = 1 + alpha / 2*pi + O(alpha^2) .

Given that g/2 is the ratio between the "charge rotation" and the "mass rotation", the expression should imply that charge rotates faster than mass (assuming that both have the same spatial distribution). Is this correct? Or is it the other way round?

Closed as per community consensus as the post is not graduate-level

asked Mar 10, 2017 in Closed Questions by Bert [ revision history ]
recategorized Mar 11, 2017 by Dilaton

Schwinger calculated the anomalous magnetic moment of electron, not of any fermion. Proton and neutron have quite significant anomalous magnetic moments, which are calculable.

A macroscopic solid body, bearing some charge, may have any ratio of the angular momentum to magnetic moment, but it does not mean that the charged parts move differently than uncharged ones. Vote to close.

commented Mar 11, 2017 by Vladimir Kalitvianski (102 points) [ no revision ]

I added "elementary" to the question, which I had implied but forgotten to state explicitly.

commented Mar 11, 2017 by Bert [ no revision ]

This is not graduate-level, voting to close.

commented Mar 11, 2017 by Dilaton (6,240 points) [ no revision ]

Your comment on this question:

To answer, leave an answer instead. Comments are usually for non-answers.
To mask links under text, please type your text, highlight it, and click the "link" button. You can then enter your link URL.
To alert a user, please use the "@" command and remove spaces from the username, example, the user "John Doe" should be pinged as "@JohnDoe", while the user "Johndoe" should be pinged as "@Johndoe". The post author is always automatically pinged (unless you are the post author).
Please consult the FAQ for as to how to format your post.

Live preview (may slow down editor) Preview

Your name to display (optional):

Email me at this address if a comment is added after mine:

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$\hbar$ysicsOve$\varnothing$flow
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

...