|Abstract||The remarkable connections between gravity and thermodynamics seem to imply that gravity is not fundamental but emergent, and in particular, as Verlinde suggested, gravity is probably an entropic force. In this paper, we will argue that the idea of gravity as an entropic force is debatable. It is shown that there is no convincing analogy between gravity and entropic force in Verlinde’s example. Neither holographic screen nor test particle satisfies all requirements for the existence of entropic force in a thermodynamics system. As a result, there is no entropic force in the gravity system. Furthermore, we show that the entropy increase of the screen is not caused by its statistical tendency to increase entropy as required by the existence of entropic force, but in fact caused by gravity. Therefore, Verlinde’s argument for the entropic origin of gravity is problematic. In addition, we argue that the existence of a minimum size of spacetime, together with the Heisenberg uncertainty principle in quantum theory, may imply the fundamental existence of gravity as a geometric property of spacetime. This provides a further support for the conclusion that gravity is not an entropic force.|
|Keywords||gravity entropic force thermodynamics Eric P. Verlinde discrete spacetime holographic emergent|
|Categories||categorize this paper)|
|External links||This entry has no external links. Add one.|
|Through your library||Only published papers are available at libraries|
Similar books and articles
Christian Wüthrich (2005). To Quantize or Not to Quantize: Fact and Folklore in Quantum Gravity. Philosophy of Science 72 (5):777-788.
Christian Wuthrich (2005). To Quantize or Not to Quantize: Fact and Folklore in Quantum Gravity. Philosophy of Science 72 (5):777-788.
Andrew Janiak (2007). Newton and the Reality of Force. Journal of the History of Philosophy 45 (1):127-147.
Chuang Liu (2003). Gauge Gravity and the Unification of Natural Forces. International Studies in the Philosophy of Science 17 (2):143 – 159.
Added to index2010-06-08
Total downloads147 ( #3,529 of 722,815 )
Recent downloads (6 months)30 ( #4,084 of 722,815 )
How can I increase my downloads?