论文标题
曲率扰动和异常解释暗能
Curvature Perturbations and Anomaly explain Dark Energy
论文作者
论文摘要
我们研究了暗能量的历史，以解释当前的幅度。我们假设暗能量是残留的宇宙常数。再加热过程中最重要的通道是QCD痕量异常的Gluon对生产。我们认为，在重新加热和大爆炸之后，Gluon对的排放迅速衰减。再加热温度取决于暗能量伽马的衰减宽度和planck质量m_p，为sqrt {m_p gamma} 〜10^6GEV。这是弗里德曼方程的结果和平衡条件γ〜H。随着宇宙低于辐射尺度，深色能量密度几乎被冷冻。然而，黑暗能量通过排放两个光子进一步降低。我们估计了QED痕量异常的当前暗能量衰减速率。弗里德曼方程的一致解决方案与观测值非常一致。暗能量尺度的抑制因子是细胞结构常数α和曲率扰动P的产物，为10^{ - 30} =（α^2p/4π）^2。我们认为，除非减去暗能量，否则必须在紫外线和IR中脱颖而出。我们还通过添加大量的右手中微子来研究瘦产生。现实的Lepto生成发生在再加热过程中。
We investigate the history of dark energy to explain the present magnitude. We assume the dark energy is the residual cosmological constant. The most important channel in the reheating process is the gluon pair productions by QCD trace anomaly. We argue dark energy decays rapidly by gluon pair emissions during the reheating and after the big bang. The reheating temperature is determined by the decay width of dark energy Gamma and the Planck mass M_p as sqrt{M_P Gamma} ~ 10^6GeV. It is the consequence of Friedmann's equation and an equilibrium condition Gamma~ H. As the Universe cools below the hadronic scale, dark energy density is almost frozen. Nevertheless the dark energy further decreases by emitting two photons. We have estimated the current decay rate of dark energy from the QED trace anomaly. The consistent solution of Friedmann equation is in an excellent agreement with the observations. The suppression factor of dark energy scale is the product of fine structure constant alpha and curvature perturbation P as 10^{-30}=(α^2P/4π)^2. We argue the conformal symmetry breaking in the both UV and IR are necessary unless dark energy is subtracted. We also investigated lepto-genesis by adding massive right handed neutrinos. The realistic lepto-genesis takes place during reheating process.
