论文标题
发电量振荡和通货膨胀后的重新加热
Inflaton Oscillations and Post-Inflationary Reheating
论文作者
论文摘要
我们详细分析了通气量的扰动衰减，该衰减涉及其潜在的$ V（ϕ）= ϕ^k $的通用形式，考虑到了非实用重新加热的效果。我们表明，温度作为宇宙学量表因子的函数的演变取决于$ k> 2 $时最终状态衰减产物的自旋统计。如果最终状态分别是费米子或玻色子，我们还包括充气诱导的最终状态质量，从而导致运动学抑制或增强。我们计算通货膨胀后达到的最高温度，随后温度的演变和最终的再加热温度。我们将结果应用于通过加热过程中的热散射来计算暗物质丰度。我们还提供了一个基于超对称性的示例，以使其与物质的耦合耦合。
We analyze in detail the perturbative decay of the inflaton oscillating about a generic form of its potential $V(ϕ) = ϕ^k$, taking into account the effects of non-instantaneous reheating. We show that evolution of the temperature as a function of the cosmological scale factor depends on the spin statistics of the final state decay products when $k > 2$. We also include the inflaton-induced mass of the final states leading to either kinematic suppression or enhancement if the final states are fermionic or bosonic respectively. We compute the maximum temperature reached after inflation, the subsequent evolution of the temperature and the final reheat temperature. We apply our results to the computation of the dark matter abundance through thermal scattering during reheating. We also provide an example based on supersymmetry for the coupling of the inflaton to matter.
