Some aspects of entropic gravity in the presence of a noncommutative Schwarzschild-deSitter black hole

被引:8
|
作者
Mehdipour, S. Hamid [1 ]
机构
[1] Islamic Azad Univ, Lahijan Branch, Dept Phys, Lahijan, Iran
关键词
Black hole thermodynamics; Noncommutative geometry; Holographic screens; Entropic force; Cosmological constant; Equivalence principle; INFLATIONARY UNIVERSE; FORCE APPROACH; HORIZON; THERMODYNAMICS; FLATNESS; CREATION; QFT;
D O I
10.1007/s10509-013-1413-6
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study some features of entropic force approach in the presence of a noncommutative Schwarzschild-deSitter black hole. In this setup, there exists a similarity between the small and large scales. There are two finite cut-off in very short and long distances wherein the force and energy graph stop abruptly at those scales. We find that the existence of a deSitter core around the origin, induced by noncommutativity, in addition to a standard deSitter background at large scale may lead to a violation of the equivalence principle. Finally in order to directly observe the finite cut-off at short-scale gravity, caused by noncommutativity quantum fluctuations, we derive an effective gravitational constant.
引用
收藏
页码:339 / 344
页数:6
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