Volume 100, Number 2, October 2012
|Number of page(s)||5|
|Published online||31 October 2012|
Minimal length, maximal energy and black-hole remnants
1 Department of Physics, Faculty of Sciences, Benha University - Benha, 13518, Egypt
2 Department of Physics, Faculty of Sciences, University of Tabuk - Tabuk, Saudi Arabia
3 Department of Physics, Faculty of Sciences, Ain Shams University - Cairo, 11566, Egypt
Received: 14 July 2012
Accepted: 25 September 2012
In this paper, we investigate the impact of the generalized uncertainty principle (GUP), proposed by some approaches to quantum gravity such as string theory and doubly special relativity theories (DSR), on black-hole physics. It turns out that such a modification will give corrections to both the temperature and the entropy of black holes. In particular, the proposed GUP also changes the picture of Hawking radiation greatly when the size of black holes approaches the Planck scale. It prevents black holes from total evaporation, predicting the existence of black-holes remnants which may be considered as a candidate for dark matter.
PACS: 04.60.Bc – Phenomenology of quantum gravity / 04.60.Cf – Gravitational aspects of string theory / 04.70.Dy – Quantum aspects of black holes, evaporation, thermodynamics
© EPLA, 2012
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