D-brane worlds and the cosmological constant

被引：0
|
作者：
Gusin, P [1 ]
Warczewski, J [1 ]
机构：
[1] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland
来源：
MODERN PHYSICS LETTERS A | 2006年 / 21卷 / 03期
关键词：
D-branes; p-branes; cosmological constant;
D O I：
10.1142/S0217732306019438
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The cosmological constant on a D-brane is analyzed. This D-brane is in the background produced by the p-brane solutions. The energy-momentum tensor in this model has been found and the form of the cosmological constant has been derived. This energy-momentum tensor is interpreted as an energy momentum tensor for a perfect fluid on the D-brane. The energy density and the pressure for this fluid have been derived. As it turned out the pressure is negative but the speed of sound is real.
引用
收藏
页码：213 / 229
页数：17
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