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- W4386554908 abstract "In this paper, we study analytical approximate solutions of the second-order homogeneous differential equations with the existence of only two turning points (but without poles), by using the uniform asymptotic approximation (UAA) method. To be more concrete, we consider the Poschl-Teller (PT) potential, for which analytical solutions are known. Depending on the values of the parameters involved in the PT potential, we find that the upper bounds of the errors of the approximate solutions in general are $lesssim 0.15% sim 10% $, to the first-order approximation of the UAA method. The approximations can be easily extended to high-order, with which the errors are expected to be much smaller. Such obtained analytical solutions can be used to study cosmological perturbations in the framework of quantum cosmology, as well as quasi-normal modes of black holes." @default.
- W4386554908 created "2023-09-09" @default.
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- W4386554908 date "2023-09-06" @default.
- W4386554908 modified "2023-10-16" @default.
- W4386554908 title "Uniform Asymptotic Approximation Method with Poschl-Teller Potential" @default.
- W4386554908 doi "https://doi.org/10.48550/arxiv.2309.03327" @default.
- W4386554908 hasPublicationYear "2023" @default.
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