Explanation for an apparent magneto-electric effect in quark search experiments
1981; Elsevier BV; Volume: 98; Issue: 6 Linguagem: Inglês
10.1016/0370-2693(81)90453-6
ISSN1873-2445
AutoresMegan Buckingham, Conyers Herring,
Tópico(s)Scientific Research and Discoveries
ResumoIt is pointed out that a spinning magnetic sphere levitated in crossed electric fields can manifest a large effective magneto-electric coefficient. The effect, of purely classical macroscopic origin, is proportional to the sphere's static electric dipole moment and independent of the spin rate. Its consequences can be serious in experiments designed to search for fractional charge on matter. In the Stanford experiment where the electric field is parallel to the supporting magnetic field, the effect does not arise in first order but it is an important problem for all other magnetic levitation experiments where the electric field is horizontal and thus at right angles to the vertical magnetic field.
Referência(s)