| Автор | Óscar J.C. Dias |
| Автор | Harvey S. Reall |
| Автор | Jorge E. Santos |
| Дата выпуска | 2009-08-01 |
| dc.description | Motivated by the Kerr-CFT conjecture, we investigate perturbations of the near-horizon extreme Kerr spacetime. The Teukolsky equation for a massless field of arbitrary spin is solved. Solutions fall into two classes: normal modes and traveling waves. Imposing suitable (outgoing) boundary conditions, we find that there are no unstable modes. The explicit form of metric perturbations is obtained using the Hertz potential formalism, and compared with the Kerr-CFT boundary conditions. The energy and angular momentum associated with scalar field and gravitational normal modes are calculated. The energy is positive in all cases. The behaviour of second order perturbations is discussed. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Kerr-CFT and gravitational perturbations |
| Тип | paper |
| DOI | 10.1088/1126-6708/2009/08/101 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 2009 |
| Первая страница | 101 |
| Последняя страница | 101 |
| Аффилиация | Óscar J.C. Dias; DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, United Kingdom |
| Аффилиация | Harvey S. Reall; DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, United Kingdom |
| Аффилиация | Jorge E. Santos; DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, United Kingdom |
| Выпуск | 08 |
