Emergent dark matter in late time universe on holographic screen

doi:10.1007/JHEP10(2018)009

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	Emergent dark matter in late time universe on holographic screen
	Cai, RG; Sun, SC ; Zhang, YL
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2018
期号	10 页码:9
关键词	GABADADZE-PORRATI COSMOLOGIES ACCELERATING UNIVERSE MODIFIED GRAVITY BRANE WORLD PHENOMENOLOGY DIMENSIONS HIERARCHY SPACETIME DYNAMICS
ISSN号	1029-8479
DOI	10.1007/JHEP10(2018)009
英文摘要	We discuss a scenario that the dark matter in late time universe emerges as part of the holographic stress-energy tensor on the hypersurface in higher dimensional flat spacetime. Firstly we construct a toy model with a de Sitter hypersurface as the holographic screen in the flat bulk. After adding the baryonic matter on the screen, we assume that both of the dark matter and dark energy can be described by the Brown-York stress-energy tensor. From the Hamiltonian constraint equation in the flat bulk, we find an interesting relation between the dark matter and baryonic matter's energy density parameters, by comparing with the Lambda cold dark matter parameterization. We further compare this holographic embedding of emergent dark matter with traditional braneworld scenario and present an alternative interpretation as the holographic universe. It can be reduced to our toy constraint in the late time universe, with the new parameterization of the Friedmann equation. We also comment on the possible connection with Verlinde's emergent gravity, where the dark matter is treated as the elastic response of the baryonic matter on the de Sitter spacetime background. We show that from the holographic de Sitter model with elasticity, the Tully-Fisher relation and the dark matter distribution in the galaxy scale can be derived.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22803]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Zhong Guan Cun East St 55, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China 3.Natl Taiwan Univ, Ctr Theoret Sci, Leung Ctr Cosmol & Particle Astrophys, Dept Phys, 1,Sect 4,Roosevelt Rd, Taipei 10617, Taiwan 4.Asia Pacific Ctr Theoret Phys, APCTP Headquarters, 67 Cheongam Ro, Pohang 790734, South Korea 5.Sogang Univ, Ctr Quantum Spacetime CQUeST, 35 Baekbeom Ro, Seoul 121742, South Korea 6.Kyoto Univ, Yukawa Inst Theoret Phys, Sakyo Ku, Kitashirakawa Oiwakecho, Kyoto 6068502, Japan
推荐引用方式 GB/T 7714	Cai, RG,Sun, SC,Zhang, YL. Emergent dark matter in late time universe on holographic screen[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(10):9.
APA	Cai, RG,Sun, SC,&Zhang, YL.(2018).Emergent dark matter in late time universe on holographic screen.JOURNAL OF HIGH ENERGY PHYSICS(10),9.
MLA	Cai, RG,et al."Emergent dark matter in late time universe on holographic screen".JOURNAL OF HIGH ENERGY PHYSICS .10(2018):9.