论文标题
加热的温度升高
Increasing Temperature toward the Completion of Reheating
论文作者
论文摘要
加热是一个过程，除了辐射以外的宇宙主要成分的能量密度（例如物质成分）被转移到辐射中。通常假定即使在加热过程中，由于宇宙的膨胀，宇宙的温度也会降低，在这种情况下，宇宙的最大温度远高于再加热温度。我们指出，在重新加热过程中，宇宙的温度实际上可能会升高。我们得出了在加热过程中温度升高的必要条件，并讨论涉及标量场的具体示例。由于在加热过程中温度的升高，我们对粒子物理和宇宙学的影响发表评论。
Reheating is a process where the energy density of a dominant component of the universe other than radiation, such as a matter component, is transferred into radiation. It is usually assumed that the temperature of the universe decreases due to cosmic expansion even during the reheating process, in which case the maximal temperature of the universe is much higher than the reheat temperature. We point out that the temperature of the universe during reheating may in fact increase in well-motivated scenarios. We derive the necessary conditions for the temperature to increase during reheating and discuss concrete examples involving a scalar field. We comment on implications for particle physics and cosmology due to an increasing temperature during reheating.
