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Numerical simulation of Quasi-Normal Modes in time-dependent background

Li-Hui Xue·Zai-Xiong Shen·Bin Wang·Ru-Keng Su
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Abstract

We study the massless scalar wave propagation in the time-dependent Schwarzschild black hole background. We find that the Kruskal coordinate is an appropriate framework to investigate the time-dependent spacetime. A time-dependent scattering potential is derived by considering dynamical black hole with parameters changing with time. It is shown that in the quasinormal ringing both the decay time-scale and oscillation are modified in the time-dependent background.

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Li-Hui Xue, Zai-Xiong Shen, Bin Wang, Ru-Keng Su. 2003-05-02. Numerical simulation of Quasi-Normal Modes in time-dependent background. https://doi.org/10.1142/s021773230401240x

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