Papers by Syed Alwi Ahmad
We study the Dirac equation in black hole spacetimes and vacuum, stationary axisymmetric spacetim... more We study the Dirac equation in black hole spacetimes and vacuum, stationary axisymmetric spacetimes in general. We solve the Dirac equation in such spacetimes via a factorization ansatz which we then apply to the Schwarzschild and Kerr spacetime. The thermal Hawking-Unruh flux is confirmed for the case of Schwarzschild. The Dirac equation is then studied in the Eddington-Finkelstein spacetime where it is suggested that the semi-classical gravitational back-reaction may be computed in the one particle case only and may represent the emission of gravitational waves. In particular the mode solutions to the Dirac equation, are completely regular at the horizon in this case and the infalling particle encounters nothing unusual at the horizon. Finally, we speculate on the Information Loss problem in a more general context beyond the semi-classical approximation.
Thesis Virginia Polytechnic Institute and State University Source Dai B 58 06 P 3113 Dec 1997 93 Pages, Dec 1, 1997
Proceedings of the Conference in Honour of the 90th Birthday of Freeman Dyson, 2014
Uploads
Papers by Syed Alwi Ahmad