The following link discusses the issues about angular momentum of the electron:
http://www.physics.mcmaster.ca/phys3mm3/notes/whatisspin.pdf As suggested in the above link, I think that the effective energy—mass-- of a rotating electric field may very well constitute an angular momentum associated with the electron which is not related to a dimension, but only the energy of the field. The obvious question is what is the explanation of the charge of the electron that creates the field? What is it that exists within the small size of the electron that creates or explains the charge? It is an intrinsic, empirical property at this point of understanding IMHO. I think that until we understand what happens down to the Planck dimensions, will not understand the electron. We have only about 20 orders of magnitude to go. Bob Cook From: John Berry Sent: Monday, December 14, 2015 8:39 PM To: [email protected] Subject: Re: [Vo]:Re: Magnetic moment .vs motion as source of magnetic field Strange, I pasted the link, but then the email accidentally sent prematurely without the link: http://physics.stackexchange.com/questions/126986/where-does-the-electron-get-its-high-magnetic-moment-from On Tue, Dec 15, 2015 at 5:38 PM, John Berry <[email protected]> wrote: Robin, the question and perhaps some of the following comments made here lend evidence to you being correct. On Tue, Dec 15, 2015 at 5:34 PM, John Berry <[email protected]> wrote: Robin, for what its worth I think you are probably right. A free electron having a magnetic moment makes no sense to me. On Tue, Dec 15, 2015 at 5:02 PM, Bob Cook <[email protected]> wrote: Where does the photon get its angular momentum, when it and its twin appear from positron-electron enillalation? I am not familiar with what line splitting the cyclotron frequency is. Bob Cook -----Original Message----- From: [email protected] Sent: Monday, December 14, 2015 7:43 PM To: [email protected] Subject: Re: [Vo]:Re: Magnetic moment .vs motion as source of magnetic field In reply to Bob Cook's message of Mon, 14 Dec 2015 19:29:26 -0800: Hi, [snip] IMO free electrons have no magnetic moment, because they have no "spin", which is not an intrinsic property of the electron, but rather a direct consequence of being bound to an atom.<<<< Now I would say that is a departure from conventional thinking. Yup. Can you further explain this conclusion? I would guess that you would say that an electron has no intrinsic angular momentum as well as photons having none. No, I think photons do have angular momentum, though I don't think electrons do. But it's just a hunch. One of the things that makes me think this is the fact when a free electron circles in a magnetic field, you get cyclotron radiation, but I would expect line splitting of the cyclotron frequency if free electrons also had an intrinsic magnetic moment. Bob Cook Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
