用宇宙尾迹观测多元宇宙
Observing the Multiverse with Cosmic Wakes
摘要：
目前的宇宙起源理论，包括弦论，都预言存在一个包含许多泡沫宇宙的多元宇宙。这些气泡宇宙通常会发生碰撞，与我们的碰撞产生宇宙尾流，进入我们的哈勃体积，在宇宙微波背景（CMB）中表现为异常对称的圆盘，并干扰大尺度结构（LSS）。有初步的观测证据与我们天空中的一个或多个这些扰动相一致。然而，其他来源可以在CMB温度图中产生类似的特征，因此需要额外的信号来验证它们的超普遍起源。在这里，我们发现，第一次，详细的三维形状和CMB温度和偏振信号的宇宙尾流的气泡碰撞在早期宇宙与目前的观测一致。预测的偏振模式具有独特的功能，当与相应的温度模式是一个独特的和引人注目的气泡碰撞信号。这些特征代表了多重宇宙范式的第一个可验证的预测，并且可能被普朗克和未来的CMB极化任务等当前实验检测到。探测到气泡碰撞将证实多元宇宙的存在，为弦论提供令人信服的证据，并使我们对宇宙及其起源的认识更加清晰。
英文摘要：
Current theories of the origin of the Universe, including string theory, predict the existence of a multiverse containing many bubble universes. These bubble universes will generically collide, and collisions with ours produce cosmic wakes that enter our Hubble volume, appear as unusually symmetric disks in the cosmic microwave background (CMB) and disturb large scale structure (LSS). There is preliminary observational evidence consistent with one or more of these disturbances on our sky. However, other sources can produce similar features in the CMB temperature map and so additional signals are needed to verify their extra-universal origin. Here we find, for the first time, the detailed three-dimensional shape and CMB temperature and polarization signals of the cosmic wake of a bubble collision in the early universe consistent with current observations. The predicted polarization pattern has distinctive features that when correlated with the corresponding temperature pattern are a unique and striking signal of a bubble collision. These features represent the first verifiable prediction of the multiverse paradigm and might be detected by current experiments such as Planck and future CMB polarization missions. A detection of a bubble collision would confirm the existence of the Multiverse, provide compelling evidence for the string theory landscape, and sharpen our picture of the Universe and its origins.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
