机构:
Chongqing Univ Posts & Telecommun, Inst Appl Phys, Chongqing 400065, Peoples R ChinaChongqing Univ Posts & Telecommun, Inst Appl Phys, Chongqing 400065, Peoples R China
Gong, YG
[1
]
机构:
[1] Chongqing Univ Posts & Telecommun, Inst Appl Phys, Chongqing 400065, Peoples R China
[2] Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China
来源:
PHYSICAL REVIEW D
|
2004年
/
70卷
/
06期
关键词:
D O I:
10.1103/PhysRevD.70.064029
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
The idea of relating the infrared and ultraviolet cutoffs is applied to the Brans-Dicke theory of gravitation. We find that the Hubble scale or the particle horizon as the infrared cutoff will not give accelerating expansion. The dynamical cosmological constant with the event horizon as the infrared cutoff is a viable dark energy model.