BTZ quasinormal frequencies as poles of Green's function
Abstract
Based on the well known fact that the quasinormal frequencies are the poles of the frequency domain Green's function we describe a method that allows us to calculate exactly the quasinormal frequencies of the KleinGordon field moving in the threedimensional rotating BTZ black hole. These quasinormal frequencies are already published and widely explored in several applications, but we use this example to expound the proposed method of computation. We think that the described procedure can be useful to calculate exactly the quasinormal frequencies of classical fields propagating in other backgrounds. Furthermore, we compare with previous results and discuss some related facts.
 Publication:

arXiv eprints
 Pub Date:
 June 2018
 arXiv:
 arXiv:1806.06547
 Bibcode:
 2018arXiv180606547L
 Keywords:

 General Relativity and Quantum Cosmology
 EPrint:
 9 pages