Asset Details
Do you wish to reserve the book?
Perturbative and nonperturbative quasinormal modes of 4D Einstein–Gauss–Bonnet black holes
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Perturbative and nonperturbative quasinormal modes of 4D Einstein–Gauss–Bonnet black holes
Do you wish to request the book?
Perturbative and nonperturbative quasinormal modes of 4D Einstein–Gauss–Bonnet black holes
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Perturbative and nonperturbative quasinormal modes of 4D Einstein–Gauss–Bonnet black holes
2020
Overview
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
α
and another branch, nonperturbative in
α
. 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
α
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.
Publisher
Springer Berlin Heidelberg,Springer,Springer Nature B.V,SpringerOpen
