https://doi.org/10.1140/epjc/s10052-014-2912-5
Letter
Thoughts on entropic gravity in the Parikh–Wilczek tunneling model of Hawking radiation
1
Department of Physics and Center for High Energy Physics, Chung Yuan Christian University, Chung Li, Taiwan
2
Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 106, Taiwan
* e-mail: steve.wen@gmail.com
Received:
20
December
2013
Accepted:
17
May
2014
Published online:
4
June
2014
In this letter, we use the Parikh–Wilczek tunneling model of Hawking radiation to illustrate that a reformulation of Verlinde’s entropic gravity is needed to derive Newton’s law for a temperature-varying screen, required by the conservation of energy. Furthermore, the entropy stored in the holographic screen is shown to be additive and its temperature dependence can be obtained.
© SIF and Springer-Verlag Berlin Heidelberg, 2014
