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Absorption of planar waves in conformal gravity space–time

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Abstract

Conformal gravity (CG) has attracted considerable interest as a compelling alternative to general relativity. We investigate the massless scalar planar wave scattering in Mannheim–Kazanas (MK) space–time of CG theory. We give different transmission coefficient as parameter \(\gamma r_0\) and \(\kappa r_0^2\) changed. Using partial-wave method, we obtain the absorption cross section, we find for larger angular momentum quantum numbers l, the corresponding maximum values of partial absorption cross section are smaller, the smaller of \(\gamma r_0\) are, the larger the partial absorption cross section are, while parameter \(\kappa r_0^2\) display the inverse situation.

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Acknowledgements

This project is supported by Special Fund of Guiyang Science and Technology Bureau (Grant No. GYU-KYZ201806-08), Science and Technology Talents Plan of the Department of Education of Guizhou Province (Grant No. KY[2016]090), the Science and Technology Foundation of Guizhou Province(Grant No. [2019]1011) and the Science and Technology Foundation of Guizhou Province (Grant No. [2018]1006).

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Correspondence to Hai Huang.

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Huang, H., Chen, J., Wang, Y. et al. Absorption of planar waves in conformal gravity space–time. Gen Relativ Gravit 51, 22 (2019). https://doi.org/10.1007/s10714-019-2506-5

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