Khare, Avinash ; Pradhan, Trilochan (1989) Magneto-electric susceptibility of the vacuum Physics Letters B, 231 (1-2). pp. 178-180. ISSN 0370-2693
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/037026...
Related URL: http://dx.doi.org/10.1016/0370-2693(89)90135-4
Abstract
A magneto-electric medium is one which becomes magnetized when it is placed in an electric field and electrically polarized when placed in a magnetic field. The question of vacuum having such a property is examined in (2+1) and (3+1) QED and expressions for relevant susceptibilities are obtained. It is shown that whereas in (2+1) dimensions such an effect can arise from the Chern-Simons action, in (3+1) dimensions it can arise from the interaction of the electromagnetic field with gravitational fields.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 17701 |
| Deposited On: | 16 Nov 2010 12:50 |
| Last Modified: | 04 Jun 2011 06:46 |
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