Complex Normal-mode Frequencies of External Perturbations in Generalized Schwarzschild Geometry

Chin. Phys. Lett.

2000, Vol. 17

Issue (4): 246-248 DOI:

Original Articles

Complex Normal-mode Frequencies of External Perturbations in Generalized Schwarzschild Geometry

YUAN Ning-Yi;LI Xin-Zhou

Department of Physics, Shanghai Teachers University, Shanghai 200234 East China Institute for Theoretical Physics , Shanghai 200237

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YUAN Ning-Yi, LI Xin-Zhou 2000 Chin. Phys. Lett. 17 246-248

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Abstract A modified Wentzel-Kramers-Brillouin approach is used to determine the complex normal-mode frequencies of external perturbations in generalized Schwarzschild geometry. In the λ = 1 case (Schwarzschild geometry), the agreement with other methods is excellent for the low-lying modes. On the contrary, the λ ≠ 1 case of this geometry is unstable against external perturbations.

Keywords: 04.20.Jb 04.30.Nk 04.25.Nx

Published: 01 April 2000

PACS:	04.20.Jb	(Exact solutions)
	04.30.Nk	(Wave propagation and interactions)
	04.25.Nx	(Post-Newtonian approximation; perturbation theory; related Approximations)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2000/V17/I4/0246

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