Quasinormal modes of unparticle black holes

被引：2
|
作者：
Lee, Jong-Phil [1 ,2 ,3 ]
机构：
[1] Yonsei Univ, Dept Phys, Seoul 120749, South Korea
[2] Yonsei Univ, IPAP, Seoul 120749, South Korea
[3] Konkuk Univ, Div Quantum Phases & Devices, Sch Phys, Seoul 143701, South Korea
来源：
PHYSICS LETTERS B | 2012年 / 708卷 / 3-5期
基金：
新加坡国家研究基金会;
关键词：
WKB APPROACH; DIMENSIONS; HIERARCHY;
D O I：
10.1016/j.physletb.2012.01.055
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In the background of unparticle-enhanced black hole geometry, we provide the quasinormal modes of scalar, vector, and Dirac particles around it. Ungravity by tensor unparticles contributes positively to the Newtonian gravity and black holes can be formed at the LHC without any extra dimensions. In the ungravity-dominant regime, the gravity looks much like that of the Schwarzschild geometry in fractional number of extra dimensions. We argue in this analysis that quasinormal modes are good fingerprints to distinguish ungravity from extra dimensions, by showing that the unitarity constraints on ungravity forbid some of the quasinormal modes which are allowed in extra dimensions. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：290 / 295
页数：6
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