Absence of Normalizable Time-periodic Solutions for The Dirac Equation in Kerr-Newman-dS Black Hole Background

Abstract

We consider the Dirac equation on the background of a Kerr-Newman-de Sitter black hole. By performing variable separation, we show that there exists no time-periodic and normalizable solution of the Dirac equation. This conclusion holds true even in the extremal case. With respect to previously considered cases, the novelty is represented by the presence, together with a black hole event horizon, of a cosmological (non degenerate) event horizon, which is at the root of the possibility to draw a conclusion on the aforementioned topic in a straightforward way even in the extremal case.

12 pages. AMS style

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• The massive Dirac equation in the Kerr-Newman-de Sitter and Kerr-Newman black hole spacetimes
• Exact solution for wave scattering from black holes: Formulation
• Greybody Radiation of scalar and Dirac perturbations of NUT Black Holes
• Massive Dirac particles on the background of charged de-Sitter black hole manifolds
• Exact wave-optical imaging of a Kerr-de Sitter black hole using Heun's equation
• Quantum properties of the Dirac field on BTZ black hole backgrounds