论文标题
弗里德曼宇宙中的大量粒子对产生和振荡：重新加热能量和熵，以及冷暗物质
Massive particle pair production and oscillation in Friedman Universe: reheating energy and entropy, and cold dark matter
论文作者
论文摘要
假设早期的宇宙以宇宙学$λ$ - 始于普朗克量表的量子时空开始。暗能量通过降低其对大规模粒子 - 抗逆转录对生产和振荡的价值来驱动通货膨胀和加热，从而导致全息和巨大的配对等离子体状态。黑暗能量和巨大对的来回反应将通胀降低到其末端，并通过迅速产生稳定且不稳定的对开始加热。我们介绍了描述来回反应的玻尔兹曼型速率方程。它形成了一个带有弗里德曼方程的近距离集合，并重新加热对相对论粒子的不稳定对。数值解决方案显示了预热，大规模的对统治和真实的加热发作。我们根据张量比比率$ 0 <r <0.047 $一致地获得了张量与尺寸比率的加热温度和熵。稳定的巨大对代表冷暗物质颗粒，并与深色能量弱相互作用。最终的冷暗物质丰度$ω_c\ sim 10^{ - 1} $在时间上大约是一个常数。
Suppose that the early Universe starts with a cosmological $Λ$-term originating from quantum spacetime at the Planck scale. Dark energy drives inflation and reheating by reducing its value for massive particle-antiparticle pairs production and oscillation, resulting in a holographic and massive pair plasma state. The back-and-forth reaction of dark energy and massive pairs slows inflation to its end and starts reheating by rapidly producing stable and unstable pairs. We introduce the Boltzmann-type rate equation describing the back-and-forth reaction. It forms a close set with Friedman equations and reheating equations for unstable pairs decay to relativistic particles. The numerical solutions show preheating, massive pairs dominated and genuine reheating episodes. We obtain the reheating temperature and entropy in terms of the tensor-to-scalar ratio $0 < r < 0.047$ consistently with observations. Stable massive pairs represent cold dark matter particles and weakly interact with dark energy. The resultant cold dark matter abundance $Ω_c\sim 10^{-1}$ is about a constant in time.
