The massive Dirac field on a rotating black hole spacetime: Angular solutions (2009)
The massive Dirac equation on a Kerr-Newman background may be solved by the method of separation of variables. The radial and angular equations are coupled via an angular eigenvalue, which is...
Pade Approximants of the Green Function in Spherically Symmetric Spacetimes (2009)
Casals, Marc, Dolan, Sam, Ottewill, Adrian, Wardell, Barry
We investigate the scalar Green function for spherically symmetric spacetimes expressed as a coordinate series expansion in the separation of the points. We calculate the series expansion of the...
Fermion scattering by a Schwarzschild black hole (2006)
Dolan, Sam, Doran, Chris, Lasenby, Anthony
We study the scattering of massive spin-half waves by a Schwarzschild black hole using analytical and numerical methods. We begin by extending a recent perturbation theory calculation to next order...
Fermion absorption cross section of a Schwarzschild black hole (2005)
Doran, Chris, Lasenby, Anthony, Dolan, Sam, Hinder, Ian
We study the absorption of massive spin-half particles by a small Schwarzschild black hole by numerically solving the single-particle Dirac equation in Painleve-Gullstrand coordinates. We calculate...
Bound states and decay times of fermions in a Schwarzschild black hole background (2002)
Lasenby, Anthony, Doran, Chris, Pritchard, Jonathan, Caceres, Alejandro, Dolan, Sam
We compute the spectrum of normalizable fermion bound states in a Schwarzschild black hole background. The eigenstates have complex energies. The real part of the energies, for small couplings,...