宇宙群岛:现代宇宙学史上的多元宇宙情景
A Cosmic Archipelago: Multiverse Scenarios in the History of Modern Cosmology
摘要:
多元宇宙场景在当代高能物理学和宇宙学中很常见,尽管许多人认为它们只是大胆的猜测。在任何情况下,没有什么比单一理论或多元宇宙的统一模型更好的了。相反,有无数的理论建议往往是不相容的。所有这些假设的共同点是假设存在许多因果分离的时空区域(如果不是完全分离的时空),并认为可观测宇宙在全球视角中是非典型的。本文考察了现代宇宙学的历史,重点关注当前思想的先驱,并展示了一些基本问题如何倾向于在越来越深的物理知识层面上呈现出来。
英文摘要:
Multiverse scenarios are common place in contemporary high energy physics and cosmology, although many consider them simply as bold speculations. In any case there is nothing like a single theory or a unified model of the multiverse. Instead, there are innumerable theoretical proposals often reciprocally incompatible. What is common to all these scenarios is the postulated existence of many causally disjointed regions of space/time (if not completely separated space-times) and the consideration of the observable universe as atypical in a global perspective. This paper examines the history of modern cosmology focusing on the forerunners of current ideas, and shows how some fundamental issues tend to present themselves on increasingly deeper levels of physical knowledge.
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