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arXiv 2109.02162hep-thastro-ph.COgr-qchep-ph
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无标量场的规范场真空与宇宙暴胀

Gauge Field Theory Vacuum and Cosmological Inflation without Scalar Field

George Savvidy

摘要:

本文用有效拉格朗日方法导出了规范场理论的量子能量动量张量和相应的量子状态方程。能量-动量张量有一个与时空度规成比例的项,并对有效宇宙学项提供有限的非发散贡献。这使得调查的影响,规范场理论真空极化的弗里德曼宇宙学,通货膨胀和原始引力波的演变。由真空极化的规范场理论导出的弗里德曼方程的I-IV型解提供了另一种暴胀机制和晚期加速的可能性。弗里德曼方程的II型解产生了有限持续时间的宇宙的初始指数膨胀,IV型解证明了晚期加速。这些解满足原初引力波放大的必要条件。

英文摘要:

We derive the quantum energy-momentum tensor and the corresponding quantum equation of state for gauge field theory using the effective Lagrangian approach. The energy-momentum tensor has a term proportional to the space-time metric and provides a finite non-diverging contribution to the effective cosmological term. This allows to investigate the influence of the gauge field theory vacuum polarisation on the evolution of Friedmann cosmology, inflation and primordial gravitational waves. The Type I-IV solutions of the Friedmann equations induced by the gauge field theory vacuum polarisation provide an alternative inflationary mechanism and a possibility for late-time acceleration. The Type II solution of the Friedmann equations generates the initial exponential expansion of the universe of finite duration and the Type IV solution demonstrates late-time acceleration. The solutions fulfil the necessary conditions for the amplification of primordial gravitational waves.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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