Exploring Quasi-Resonance in Rotating Black Holes Through Analog Gravity

Recent research by Hang Liu and Hong Guo, titled "Massive Scalar Perturbations and Quasi-Resonance of Rotating Black Hole in Analog Gravity," explores the dynamics of sound waves in a photon-fluid that simulates the behavior of scalar fields in curved spacetime. This study extends previous work on massless quasinormal modes (QNMs) in photon-fluid by analyzing the quasinormal modes of massive scalar field perturbations in an analog rotating black hole background.

The researchers employed methods such as the Continued Fraction Method and WKB approximation to calculate the properties of the fundamental QNMs. A significant finding of this research is the identification of quasi-resonance phenomena, which may exist in this analog gravity model. The quasi-resonance is characterized by a slow damping rate and longevity, providing a promising avenue for laboratory studies of QNMs in analog gravity setups.

The implications of this research are noteworthy. The ability to study quasinormal modes in a controlled laboratory environment could enhance our understanding of black hole physics and gravitational wave phenomena. This work opens up new possibilities for experimental investigations into the properties of black holes and their analogs, potentially leading to deeper insights into the fundamental aspects of gravity and quantum mechanics.

For further details, the paper can be accessed at arXiv:2409.00320.