Snyder's model—de Sitter special relativity duality and de Sitter gravity
Snyder's model—de Sitter special relativity duality and de Sitter gravity
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DOI:
10.1088/0264-9381/24/16/004
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发表时间:
2007-03
影响因子:
3.5
通讯作者:
Han-Ying Guo;Chao-guang Huang;Yu Tian;Hong-Tu Wu;Zhan Xu;Bin Zhou
中科院分区:
文献类型:
--
作者:
Han-Ying Guo;Chao-guang Huang;Yu Tian;Hong-Tu Wu;Zhan Xu;Bin Zhou
Between Snyder's quantized space-time model in de Sitter space of momenta and the dS special relativity on dS-spacetime of radius R with Beltrami coordinates, there is a one-to-one dual correspondence supported by a minimum uncertainty-like argument. Together with the Planck length ℓP, R ≃ (3/Λ)1/2 should be a fundamental constant. They lead to a dimensionless constant g ∼ ℓPR−1 = (Gℏc−3Λ/3)1/2 ∼ 10−61. These indicate that physics at these two scales should be dual to each other and there is in-between gravity of local dS-invariance characterized by g. A simple model of dS-gravity with a gauge-like action on umbilical manifolds may show these characteristics. It can pass the observation tests and support the duality.