arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0707.3247hep-ph
收藏

Lorentz破坏下的宇宙粒子产生

Cosmological Particle Creation in the Presence of Lorentz Violation

E. Khajeh, N. Khosravi, H. Salehi

摘要:

近年来,洛伦兹对称性破缺在宇宙学中的作用引起了人们的广泛关注。在宇宙学的背景下,几个主题可以受到洛伦兹破坏的影响,例如,暴胀方案、宇宙微波背景、暗能量问题和夸克生成。本文研究了由洛伦兹破坏引起的宇宙学粒子产生。我们考虑一个精确可解的模型,用于寻找在膨胀时空中表现出洛伦兹破坏的粒子产生的光谱特性。在这个模型中,我们计算了频谱及其随时空膨胀率和膨胀量的变化。

英文摘要:

In recent years, the effects of Lorentz symmetry breaking in cosmology has attracted considerable amount of attention. In cosmological context several topics can be affected by Lorentz violation,e.g., inflationary scenario, CMB, dark energy problem and barryogenesis. In this paper we consider the cosmological particle creation due to Lorentz violation (LV). We consider an exactly solvable model for finding the spectral properties of particle creation in an expanding space-time exhibiting Lorentz violation. In this model we calculate the spectrum and its variations with respect to the rate and the amount of space-time expansion.

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。

↑