论文标题

纳什理论中的宇宙加速度和替代真空的概念

Cosmic Acceleration and the notion of Alternative Vacuum in Nash Theory

论文作者

Chakrabarti, Soumya, Bhattacharya, Soumya, Banerjee, Rabin, Lahiri, Amitabha

论文摘要

我们认为,纳什理论是一种二次的重力理论,可以描述一个没有任何异国情调或宇宙常数的延迟宇宙加速度。使用马尔可夫链蒙特卡洛模拟和JLA+OHD+BAO数据集,裁定了NASH理论的精确宇宙学解决方案的观察性生存能力。注意到并分析了与标准λCDM宇宙学的偏离。我们证明,纳什真空动力学等同于爱因斯坦真空的动力学以及自我相互作用的希格斯标量场,只有在允许希格斯真空期望值的轻度演变时。这会导致基本颗粒的质量尺度和良好结构常数的变化。发现这些变化与一系列类星体的分子吸收光谱分析非常吻合。

We argue that Nash theory, a quadratic theory of Gravity, can describe a late-time cosmic acceleration without any exotic matter or cosmological constant. The observational viability of an exact cosmological solution of Nash theory is adjudged using a Markov chain Monte Carlo simulation and JLA+OHD+BAO data sets. Departures from standard ΛCDM cosmology are noted and analyzed. We prove that the Nash vacuum dynamics is equivalent to the dynamics of an Einstein vacuum plus a self-interacting Higgs scalar field, only if a mild evolution of the Higgs Vacuum Expectation Value is allowed. This leads to variations in the mass scales of fundamental particles and the fine structure constant. The variations are found to fit nicely with the analysis of molecular absorption spectra from a series of Quasars.

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