Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Complex angular momentum in black hole physics and quasinormal modes   By using the complex angular momentum approach, we prove that the quasinormal
mode complex frequencies of the Schwarzschild black hole are Breit-Wigner type
resonances generated by a family of surface waves propagating close to the
unstable circular photon (graviton) orbit at $r=3M$. Furthermore, because each
surface wave is associated with a given Regge pole of the $S$-matrix, we can
construct the spectrum of the quasinormal-mode complex frequencies from Regge
trajectories. The notion of surface wave orbiting around black holes thus
appears as a fundamental concept which could be profitably introduced in
various areas of black hole physics in connection with the complex angular
momentum approach.

17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
18
The categories of this paper are: econ
3
The categories of this paper are: physics
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an