Correspondence *Email: vasak@fias.uni-frankfurt.de The cosmological implications of the Covariant Canonical Gauge Theory of Gravity (CCGG) are investigated. CCGG is a Palatini theory derived from first principles using the canonical transformation formalism in the covariant Hamiltonian formulation. The Einstein-Hilbert theory is thereby extended by a quadratic Riemann-Cartan term in the Lagrangian. Moreover, the requirement of covariant conservation of the stress-energy tensor leads to necessary presence of torsion. In the Friedman universe that promotes the cosmological constant to a time-dependent function, and gives rise to a geometrical correction with the EOS of dark radiation. The resulting cosmology, compatible with the ΛCDM parameter set, encompass)es bounce and bang scenarios with graceful exits into the late dark energy era. Testing those scenarios against low-z observations shows that CCGG is a viable theory.

中文翻译：

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严格推导暗能量和膨胀作为协变规范规范重力中的几何效应

通信 *电子邮件：vasak@fias.uni-frankfurt.de 研究了引力协变规范规范理论 (CCGG) 的宇宙学意义。CCGG 是帕拉蒂尼理论，从第一性原理导出，使用协变哈密顿公式中的规范变换形式主义。因此，爱因斯坦-希尔伯特理论被拉格朗日函数中的二次黎曼-嘉当项扩展。此外，应力-能量张量协变守恒的要求导致必要的扭转存在。在弗里德曼宇宙中，将宇宙常数提升为与时间相关的函数，并通过暗辐射的 EOS 进行几何校正。由此产生的宇宙学与 ΛCDM 参数集兼容，涵盖了反弹和爆炸场景，并优雅地退出了暗能量时代晚期。