论文标题
在CMB中伪装的纠缠
Entanglement masquerading in the CMB
论文作者
论文摘要
最简单的单场通货膨胀模型捕获了今天观察到的宇宙微波背景（CMB）中模式的所有相关贡献。在这些模型中，一个关键的假设是，源代源模式的量子通货膨胀波动是由特定量子状态（BUNCH-DAVIES（BD）状态）产生的。尽管从理论角度来看，这是一个充分动机的选择，但出现的问题是，当前数据是否可以排除其他国家的选择，也是有动力的国家选择。特别是，正如我们先前在Arxiv：2104.13410 [Hep-th]中所证明的那样，纠缠是自然而不可避免地在通货膨胀期间动态产生的，因为存在“滚动”的观众标量域 - 与尺寸相比，结果纠缠状态将产生具有可测量的可测量偏差的原始功率。在这项工作中，我们开发了一个扰动框架，以使用Monte Carlo Techniques对使用Planck CMB数据的（或检测）纠缠状态进行系统探索。我们发现，与我们的框架可访问的大多数纠缠状态与数据一致。一个人必须扩大框架，以允许更多的纠缠状态，以使Planck约束饱和，并更系统地探索数据可能在不同可能性中具有的任何偏好。
The simplest single-field inflation models capture all the relevant contributions to the patterns in the Cosmic Microwave Background (CMB) observed today. A key assumption in these models is that the quantum inflationary fluctuations that source such patterns are generated by a particular quantum state -- the Bunch-Davies (BD) state. While this is a well-motivated choice from a theoretical perspective, the question arises of whether current data can rule out other, also well motivated, choices of states. In particular, as we previously demonstrated in arXiv:2104.13410 [hep-th], entanglement is naturally and inevitably dynamically generated during inflation given the presence of a "rolling" spectator scalar field -- and the resulting entangled state will yield a primordial power spectrum with potentially measurable deviations compared to the canonical BD result. For this work we developed a perturbative framework to allow a systematic exploration of constraints on (or detection of) entangled states with Planck CMB data using Monte Carlo techniques. We have found that most entangled states accessible with our framework are consistent with the data. One would have to expand the framework to allow a greater variety of entangled states in order to saturate the Planck constraints and more systematically explore any preferences the data may have among the different possibilities.
