Volume 95, Number 2, July 2011
|Number of page(s)||5|
|Published online||21 June 2011|
On tunneling across horizons
Dipartimento di Fisica- Università di Trento and INFN, Gruppo Collegato di Trento - Via Sommarive 14, 38100 Povo (Trento) Italy, EU
Accepted: 3 June 2011
The tunneling method for stationary black holes in the Hamilton-Jacobi variant is reconsidered in the light of some critiques that have been moved against. It is shown that once the tunneling trajectories have been correctly identified the method is free from internal inconsistencies, it is manifestly covariant, it allows for the extension to spinning particles and it can even be used without solving the Hamilton-Jacobi equation. These conclusions borrow support on a simple analytic continuation of the classical action of a pointlike particle, made possible by the unique assumption that it should be analytic in the complexified Schwarzschild or Kerr-Newman space-time. A more general version of the Parikh-Wilczek method will also be proposed along these lines.
PACS: 04.70.Dy – Quantum aspects of black holes, evaporation, thermodynamics / 04.70.Bw – Classical black holes / 04.70.-s – Physics of black holes
© EPLA, 2011
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