1Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918(4), Beijing 100049
2Graduate School of the Chinese Academy of Sciences, Beijing 100049
3Department of Physics, Peking University, Beijing 100871
Dark Energy Density in Brane World
WEN Hai-Bao1,2;HUANG Xin-Bing3
1Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918(4), Beijing 100049
2Graduate School of the Chinese Academy of Sciences, Beijing 100049
3Department of Physics, Peking University, Beijing 100871
Abstract： We present a possible explanation to the tiny positive cosmological constant under the frame of AdS5 spacetime embedded by a dS4 brane. We calculate the dark energy density by summing the zero point energy of massive scalar fields in AdS5 spacetime. Under the assumption that the radius of AdS5 spacetime is of the same magnitude as the radius of observable universe, the dark energy density in dS4 brane is obtained, which is smaller than the observational value. The reasons are also discussed.
WEN Hai-Bao;HUANG Xin-Bing. Dark Energy Density in Brane World[J]. 中国物理快报, 2005, 22(4): 816-819.
WEN Hai-Bao, HUANG Xin-Bing. Dark Energy Density in Brane World. Chin. Phys. Lett., 2005, 22(4): 816-819.
2005, Vol. 22 
