Effects of torsion coupling on fermions and Bounce dynamics of the universe

IF 2.5 3区 物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS
S. Davood Sadatian, S. Mohamad Reza Hosseini
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Abstract

The influence of torsion coupling with fermions on Bounce dynamics is an intriguing area of research at the intersection of gravity, particle physics, and cosmology. While definitive answers are still elusive, there are promising theoretical indications and ongoing investigations to explore this connection. Theoretically, torsion coupling with fermions could introduce new terms into the equations governing the Bounce, potentially influencing its characteristics (i.e. a singular bouncing cosmology can be attained through the introduction of a fermion field with Bardeen-Cooper-Schrieffer (BCS) condensation at high energy scales). In this regard, we discuss the role of fermion fields in cosmology, particularly focusing on the bouncing model as a solution to the singularity problem of the Big Bang. We highlight how the coupling between spin and torsion in the Einstein-Cartan theory of gravity can prevent gravitational singularities, leading to a nonsingular bounce instead of a Big Bang. We emphasize the implications of this model for understanding the early universe and the fundamental interactions that shaped its evolution. This study also references some works that have contributed to the understanding of fermionic interactions and their cosmological significance, suggesting new subject for future research in this area.
扭转耦合对费米子和宇宙弹跳动力学的影响
与费米子的扭转耦合对弹跳动力学的影响是引力、粒子物理和宇宙学交叉研究的一个有趣领域。虽然明确的答案仍然难以捉摸,但有希望的理论迹象和正在进行的研究来探索这种联系。理论上,与费米子的扭转耦合可能会在控制弹跳的方程中引入新的术语,从而潜在地影响其特性(即,通过引入具有高能量尺度Bardeen-Cooper-Schrieffer (BCS)凝聚的费米子场,可以获得一个奇异的弹跳宇宙学)。在这方面,我们讨论了费米子场在宇宙学中的作用,特别关注弹跳模型作为大爆炸奇点问题的解决方案。我们强调了爱因斯坦-卡坦引力理论中自旋和扭转之间的耦合如何阻止引力奇点,从而导致非奇异弹跳而不是大爆炸。我们强调这个模型对理解早期宇宙和塑造其演化的基本相互作用的影响。本研究还引用了一些有助于理解费米子相互作用及其宇宙学意义的工作,为该领域的未来研究提出了新的课题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Nuclear Physics B
Nuclear Physics B 物理-物理:粒子与场物理
CiteScore
5.50
自引率
7.10%
发文量
302
审稿时长
1 months
期刊介绍: Nuclear Physics B focuses on the domain of high energy physics, quantum field theory, statistical systems, and mathematical physics, and includes four main sections: high energy physics - phenomenology, high energy physics - theory, high energy physics - experiment, and quantum field theory, statistical systems, and mathematical physics. The emphasis is on original research papers (Frontiers Articles or Full Length Articles), but Review Articles are also welcome.
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