The Gravitational Magnetoelectric Effect
Electromagnetism in spacetime can be treated in terms of an analogue linear dielectric medium. In this paper, we discuss the gravitational analogue of the linear magnetoelectric effect, which can be found in multiferroic materials. While this is known to occur for metrics with non-zero mixed compone...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Universe |
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| Online Access: | https://www.mdpi.com/2218-1997/5/4/88 |
| _version_ | 1811187126442655744 |
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| author | Gary W. Gibbons Marcus C. Werner |
| author_facet | Gary W. Gibbons Marcus C. Werner |
| author_sort | Gary W. Gibbons |
| collection | DOAJ |
| description | Electromagnetism in spacetime can be treated in terms of an analogue linear dielectric medium. In this paper, we discuss the gravitational analogue of the linear magnetoelectric effect, which can be found in multiferroic materials. While this is known to occur for metrics with non-zero mixed components, we show how it depends on the choice of spatial formalism for the electromagnetic fields, including differences in tensor weight, and also on the choice of coordinate chart. This is illustrated for Langevin–Minkowski, four charts of Schwarzschild spacetime, and two charts of pp gravitational waves. |
| first_indexed | 2024-04-11T13:57:48Z |
| format | Article |
| id | doaj.art-3990c41b4b3f43f49ad2cbffa139fb82 |
| institution | Directory Open Access Journal |
| issn | 2218-1997 |
| language | English |
| last_indexed | 2024-04-11T13:57:48Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Universe |
| spelling | doaj.art-3990c41b4b3f43f49ad2cbffa139fb822022-12-22T04:20:12ZengMDPI AGUniverse2218-19972019-04-01548810.3390/universe5040088universe5040088The Gravitational Magnetoelectric EffectGary W. Gibbons0Marcus C. Werner1Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, UKCenter for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University, Kitashirakawa Oiwakecho Sakyoku, Kyoto 606-8502, JapanElectromagnetism in spacetime can be treated in terms of an analogue linear dielectric medium. In this paper, we discuss the gravitational analogue of the linear magnetoelectric effect, which can be found in multiferroic materials. While this is known to occur for metrics with non-zero mixed components, we show how it depends on the choice of spatial formalism for the electromagnetic fields, including differences in tensor weight, and also on the choice of coordinate chart. This is illustrated for Langevin–Minkowski, four charts of Schwarzschild spacetime, and two charts of pp gravitational waves.https://www.mdpi.com/2218-1997/5/4/88magnetoelectric effectgeneral relativityanalogue models |
| spellingShingle | Gary W. Gibbons Marcus C. Werner The Gravitational Magnetoelectric Effect Universe magnetoelectric effect general relativity analogue models |
| title | The Gravitational Magnetoelectric Effect |
| title_full | The Gravitational Magnetoelectric Effect |
| title_fullStr | The Gravitational Magnetoelectric Effect |
| title_full_unstemmed | The Gravitational Magnetoelectric Effect |
| title_short | The Gravitational Magnetoelectric Effect |
| title_sort | gravitational magnetoelectric effect |
| topic | magnetoelectric effect general relativity analogue models |
| url | https://www.mdpi.com/2218-1997/5/4/88 |
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