Quasi-normal modes of a dielectric ball and some their implications
| dc.creator | Nesterenko, V. V. | |
| dc.creator | Feoli, A. | |
| dc.creator | Lambiase, G. | |
| dc.creator | Scarpetta, G. | |
| dc.date | 2005-12-29 | |
| dc.date | 2006-10-04 | |
| dc.date.accessioned | 2026-07-07T06:54:34Z | |
| dc.date.available | 2026-07-07T06:54:34Z | |
| dc.description | It is shown that the quasi-normal modes arise, in a natural way, when considering the oscillations in unbounded regions by imposing the radiation condition at spatial infinity with a complex wave vector $k$. Hence quasi-normal modes are not peculiarities of gravitation problems only (black holes and relativistic stars). It is proposed to consider the space form of the quasi-normal modes with allowance for their time dependence. As a result, the problem of their unbounded increase when $r\to \infty$ is not encountered more. The properties of quasi-normal modes of a compact dielectric sphere are discussed in detail. It is argued that the spatial form of these modes (especially so-called surface modes) should be taken into account, for example, when estimating the potential health hazards due to the use of portable telephones. | |
| dc.description | 19 pages, 1 figure with two eps files, REVTEX4; presentation is improved | |
| dc.identifier | https://arxiv.org/abs/hep-th/0512340 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0512340 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/105985 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Quasi-normal modes of a dielectric ball and some their implications | |
| dc.type | text |