The role of the Planck scale in black hole radiance

Iván Agulló, CSIC-UV - Instituto de Física Corpuscular (IFIC)
José Navarro-Salas, CSIC-UV - Instituto de Física Corpuscular (IFIC)
Gonzalo J. Olmo, University of Wisconsin-Milwaukee
Leonard Parker, University of Wisconsin-Milwaukee


Lorentz invariance plays a pivotal role in the derivation of the Hawking effect, which crucially requires an integration in arbitrarily small distances or, equivalently, in unbounded energies. New physics at the Planck scale could, therefore, potentially modify the emission spectrum. We argue, however, that the kinematic invariance can be deformed in such a way that the thermal spectrum remains insensitive to trans-Planckian physics. © 2008 World Scientific Publishing Company.