Scattering of Dirac waves off Kerr black holes

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Abstract

Chandrasekhar separated the Dirac equation for spinning and massive particles in Kerr geometry into radial and angular parts. Here we solve the complete wave equation and find out how the Dirac wave scatters off Kerr black holes. The eigenfunctions, eigenvalues and reflection and transmission co-efficients are computed. We compare the solutions with several parameters to show how a spinning black hole recognizes the mass and energy of incoming waves. Very close to the horizon the solutions become independent of the particle parameters, indicating the universality of the behaviour.

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Chakrabarti, S. K., & Mukhopadhyay, B. (2000). Scattering of Dirac waves off Kerr black holes. Monthly Notices of the Royal Astronomical Society, 317(4), 979–984. https://doi.org/10.1046/j.1365-8711.2000.03726.x

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