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Cai, RG; Sun, SC; Zhang, YL
Emergent dark matter in late time universe on holographic screen
KeywordGabadadze-porrati Cosmologies Accelerating Universe Modified Gravity Brane World Phenomenology Dimensions Hierarchy Spacetime Dynamics

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.

Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
Indexed BySCIE
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.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
Recommended Citation
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.
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