Inverse Problems Related to the Classical Wave Propagation

2020 ◽  
pp. 241-284
Keyword(s):  
Wave Propagation ◽  
Inverse Problems ◽  
Classical Wave

scholarly journals QUASINORMAL MODES AND LATE-TIME TAILS OF CANONICAL ACOUSTIC BLACK HOLES

2007 ◽  
Vol 16 (07) ◽  
pp. 1211-1218 ◽  
Author(s):  
PING XI ◽  
XIN-ZHOU LI
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Wave Propagation ◽  
Angular Momentum ◽  
Numerical Method ◽  
Time Scale ◽  
Quasinormal Modes ◽  
Late Time ◽  
Classical Wave ◽  
Acoustic Black Holes

In this paper, we investigate the evolution of classical wave propagation in the canonical acoustic black hole by a numerical method and discuss the details of the tail phenomenon. The oscillating frequency and damping time scale both increase with the angular momentum l. For lower l, numerical results show the lowest WKB approximation gives the most reliable result. We also find that the time scale of the interim region from ringing to tail is not affected obviously by changing l.

scholarly journals Quasinormal modes and classical wave propagation in analogue black holes

2004 ◽  
Vol 70 (12) ◽  
Author(s):  
Emanuele Berti ◽  
Vitor Cardoso ◽  
José P. S. Lemos
Keyword(s):  
Black Holes ◽  
Wave Propagation ◽  
Quasinormal Modes ◽  
Classical Wave
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