| dc.creator | Aragon, Almendra | |
| dc.creator | Becar, Ramon | |
| dc.creator | Gonzalez, P. A. | |
| dc.creator | Vasquez, Yerko | |
| dc.date | 2020 | |
| dc.date | 2021-04-30T16:47:46Z | |
| dc.date | 2021-04-30T16:47:46Z | |
| dc.date.accessioned | 2021-06-14T22:07:22Z | |
| dc.date.available | 2021-06-14T22:07:22Z | |
| dc.identifier | EUROPEAN PHYSICAL JOURNAL C,Vol.80,,2020 | |
| dc.identifier | http://repositoriodigital.uct.cl/handle/10925/3503 | |
| dc.identifier | 10.1140/epjc/s10052-020-8298-7 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3301019 | |
| dc.description | We study the propagation of probe scalar fields in the background of 4D Einstein-Gauss-Bonnet black holes with anti-de Sitter (AdS) asymptotics and calculate the quasinormal modes. Mainly, we show that the quasinormal spectrum consists of two different branches, a branch perturbative in the Gauss-Bonnet coupling constant a and another branch, nonperturbative in a. The perturbative branch consists of complex quasinormal frequencies that approximate the quasinormal frequencies of the Schwarzschild AdS black hole in the limit of a null coupling constant. On the other hand, the nonperturbative branch consists of purely imaginary frequencies and is characterized by the growth of the imaginary part when a decreases, diverging in the limit of null coupling constant; therefore they do not exist for the Schwarzschild AdS black hole. Also, we find that the imaginary part of the quasinormal frequencies is always negative for both branches; therefore, the propagation of scalar fields is stable in this background. | |
| dc.language | en | |
| dc.publisher | SPRINGER | |
| dc.source | EUROPEAN PHYSICAL JOURNAL C | |
| dc.title | Perturbative and nonperturbative quasinormal modes of 4D Einstein-Gauss-Bonnet black holes | |
| dc.type | Article | |
