动力学主导的早期宇宙低能态的非振荡功率谱
Non-oscillatory power spectrum from States of Low Energy in kinetically dominated early universes
摘要：
最近，低能态（SLEs）被提出作为圈量子宇宙学（LQC）中原始微扰的可行真空态。在这项工作中，我们调查的LQC的高曲率区域的定义上的SLE的效果。转移的测试功能，定义他们远离这个政权的原始功率谱的扰动更接近所谓的非振荡（NO）真空，这是另一个可行的选择初始条件之前介绍的LQC上下文中的支持。此外，通过与Hadamard型空间方程的比较，我们证明了NO真空也是Hadamard型的。
英文摘要：
Recently, States of Low Energy (SLEs) have been proposed as viable vacuum states of primordial perturbations within Loop Quantum Cosmology (LQC). In this work we investigate the effect of the high curvature region of LQC on the definition of SLEs. Shifting the support of the test function that defines them away from this regime results in primordial power spectra of perturbations closer to those of the so-called Non-oscillatory (NO) vacuum, which is another viable choice of initial conditions previously introduced in the LQC context. Furthermore, through a comparison with the Hadamard-like SLEs, we prove that the NO vacuum is of Hadamard type as well.
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