论文标题
从斧头样通货膨胀后的非亚伯重新加热的引力波背景
Gravitational wave background from non-Abelian reheating after axion-like inflation
论文作者
论文摘要
伪尺度的Adflaton $φ$，耦合到非亚伯式部门的拓扑密度密度$ f \ tilde {f} $，可以衰减以衡量玻色子（$φ\ g g g $），这可能会迅速进行热量化。然后，非 - 亚伯“强Sphalerons”增加了$φ$的摩擦，从而导致了一个自我扩增的过程，可以有效地加热培养基。我们根据最小的参数来确定这种过程的重力波生产速率，该过程通过流体动力波动和粒子碰撞来确定。只有中等比例的能量密度转化为引力波，这表明非阿布莱尔模型可能避免在某些阿贝尔病例中观察到过多的生产。
A pseudoscalar inflaton $φ$, coupled to the topological charge density $F\tilde{F}$ of a non-Abelian sector, can decay to gauge bosons ($φ\to g g $), which may thermalize rapidly. The friction felt by $φ$ is then increased by non-Abelian "strong sphalerons", leading to a self-amplifying process that can efficiently heat up the medium. We determine a lower bound for the gravitational wave production rate from such a process, originating via hydrodynamic fluctuations and particle collisions, in terms of a minimal number of parameters. Only a moderate fraction of energy density is converted to gravitational waves, suggesting that non-Abelian models may avoid the overproduction observed in some Abelian cases.
