| Full text | |
| Author(s): |
Total Authors: 3
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| Affiliation: | [1] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo - Brazil
[2] Univ Florida, Dept Phys, Gainesville, FL 32611 - USA
[3] Tomsk State Univ, Dept Phys, Tomsk 634050 - Russia
[4] PN Lebedev Phys Inst, Moscow 117924 - Russia
Total Affiliations: 4
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| Document type: | Journal article |
| Source: | EUROPEAN PHYSICAL JOURNAL C; v. 74, n. 4 APR 23 2014. |
| Web of Science Citations: | 6 |
| Abstract | |
We show, within QED and other possible nonlinear theories, that a static charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (constant and homogeneous) magnetic field in the vacuum. The magnetic moment is quadratic in the charge, depends on its size and is parallel to the external field, provided the charge distribution is at least cylindrically symmetric. This magneto-electric effect is a nonlinear response of the magnetized vacuum to an applied electrostatic field. Referring to the simple example of a spherically symmetric applied field, the nonlinearly induced current and its magnetic field are found explicitly throughout the space; the pattern of the lines of force is depicted, both inside and outside the charge, which resembles that of a standard solenoid of classical magnetostatics. (AU) | |
| FAPESP's process: | 13/16592-4 - Problems in quantum field theory with strong external fields and enhanced canonical quantization of classical systems |
| Grantee: | Tiago Carlos Adorno de Freitas |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| FAPESP's process: | 11/51867-9 - Anatoly Efimovich Shabad | PN Lebedev Physical Institute - Rússia |
| Grantee: | Dmitri Maximovitch Guitman |
| Support Opportunities: | Research Grants - Visiting Researcher Grant - International |