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Phys Rev Lett
; 113(24): 240404, 2014 Dec 12.
Article
in English
| MEDLINE
| ID: mdl-25541755
ABSTRACT
We show that an electron moving in a uniform magnetic field possesses a time-varying "diamagnetic" angular momentum. Surprisingly this means that the kinetic angular momentum of the electron may vary with time, despite the rotational symmetry of the system. This apparent violation of angular momentum conservation is resolved by including the angular momentum of the surrounding fields.