The recent measurement of a cutoff k_min in the fluctuation power spectrum P(k) of the cosmic microwave background may vitiate the possibility that slow-roll inflation can simultaneously solve the horizon problem and account for the formation of structure via the growth of quantum fluctuations in the inflaton field. Instead, we show that k_min may be interpreted more successfully in the R_h=ct cosmology, as the first mode exiting from the Planck scale into the semi-classical Universe shortly after the Big Bang. In so doing, we demonstrate that such a scenario completely avoids the well-known trans-Planckian problem plaguing standard inflationary cosmology.

中文翻译：

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R h = ct 宇宙中跨普朗克问题的解决

最近对宇宙微波背景波动功率谱 P(k) 中的截止 k_min 的测量可能会削弱慢滚膨胀可以同时解决视界问题并解释结构形成的可能性。暴胀子领域。相反，我们表明 k_min 可能在 R_h=ct 宇宙学中被更成功地解释为大爆炸后不久从普朗克尺度进入半经典宇宙的第一种模式。通过这样做，我们证明了这种情况完全避免了困扰标准暴胀宇宙学的众所周知的跨普朗克问题。