标题： 扭转驱动宇宙膨胀 显示英文标题

标题： Torsion driving cosmic expansion

摘要： 我们研究一个基于规范哈密顿变换理论的宇宙学模型。 使用自由引力 De Donder-Weyl 哈密顿量$H_\mathrm{Gr}$的线性二次方法，该模型包含描述 AdS 空间变形和完全反对称扭率的项，除了爱因斯坦理论之外。 爱因斯坦-卡坦理论的扩展依赖于两个最初未知的常数，$\Omega_\mathrm{g}$和$\Omega_\mathrm{s}$。 给定从渐近分析中得出的这些参数的适当选择，进行了数值计算，使用了$\Omega_\mathrm{\Lambda} = 0$。 所有其他所需的宇宙学参数都使用了普朗克合作的值。 这样，表明扭率可以解释通常归因于暗能量的现象，从而可以替代爱因斯坦的宇宙学常数。 显示英文摘要

摘要： We study a cosmological model based on the canonical Hamiltonian transformation theory. Using a linear-quadratic approach for the free gravitational De Donder-Weyl Hamiltonian $H_\mathrm{Gr}$, the model contains terms describing a deformation of an AdS spacetime and a fully anti-symmetric torsion in addition to Einstein's theory. The resulting extension of the Einstein-Cartan theory depends on two initially unknown constants, $\Omega_\mathrm{g}$ and $\Omega_\mathrm{s}$. Given an appropriate choice of these parameters resulting from the analysis of asymptotics, numerical calculations were performed with $\Omega_\mathrm{\Lambda} = 0$. Values from the Planck Collaboration were used for all other required cosmological parameters. In this way, it is shown that torsion can explain phenomena commonly attributed to dark energy, and thus can replace Einstein's cosmological constant.