论文标题
黑暗文物的速度生产：非扰动量子研究
Tachyonic production of dark relics: a non-perturbative quantum study
论文作者
论文摘要
我们研究了由非最少耦合的观众标量场和充气量组成的系统，在通货膨胀结束后再加热期间的黑暗文物的生产。我们为单点函数和观众场的两点函数得出了一组重新归一化的量子传输方程，并以数值解决。我们发现我们的系统可以体现速度和参数不稳定性。前者是由于非最小耦合而导致的预期结果，但是后者显示由两点函数与RICCI标量的新型相互作用驱动的新功能。我们发现，当由两点函数驱动的参数不稳定性发生时，它会主导粒子的总产生。还发现定量结果对模型参数高度敏感。
We study production of dark relics during reheating after the end of inflation in a system consisting of a non-minimally coupled spectator scalar field and the inflaton. We derive a set of renormalized quantum transport equations for the one-point function and the two-point function of the spectator field and solve them numerically. We find that our system can embody both tachyonic and parametric instabilities. The former is an expected result due to the non-minimal coupling, but the latter displays new features driven by a novel interplay of the two-point function with the Ricci scalar. We find that when the parametric instability driven by the two-point function takes place, it dominates the total particle production. The quantitative results are also found to be highly sensitive to the model parameters.
