TY - JOUR AU - Agullo, I. AU - Navarro-Salas, J. AU - Olmo, G. J. AU - Parker, L. PY - 2010 DA - 2010// TI - Acceleration radiation, transition probabilities and trans-Planckian physics T2 - New J. Phys. JO - New Journal of Physics SP - 095017 EP - 18pp VL - 12 PB - Iop Publishing Ltd AB - An important question in the derivation of the acceleration radiation, which also arises in Hawking's derivation of black hole radiance, is the need to invoke trans-Planckian physics in describing the creation of quanta. We point out that this issue can be further clarified by reconsidering the analysis in terms of particle detectors, transition probabilities and local two-point functions. By writing down separate expressions for the spontaneous-and induced-transition probabilities of a uniformly accelerated detector, we show that the bulk of the effect comes from the natural (non-trans-Planckian) scale of the problem, which largely diminishes the importance of the trans-Planckian sector. This is so, at least, when trans-Planckian physics is defined in a Lorentz-invariant way. This analysis also suggests how one can define and estimate the role of trans-Planckian physics in the Hawking effect itself. SN - 1367-2630 UR - http://arxiv.org/abs/1010.4004 UR - https://doi.org/10.1088/1367-2630/12/9/095017 DO - 10.1088/1367-2630/12/9/095017 LA - English N1 - ISI:000284766400006 ID - Agullo_etal2010 ER -