论文标题
Schrödinger的黑洞猫
Schrödinger's Black Hole Cat
论文作者
论文摘要
在缺乏量子重力理论的情况下，我们提出了一个“自下而上”的框架，用于通过配对两个量子理论的两个最基本的概念和一般相对论，即量子叠加和时空。我们展示了如何描述这种“时空叠加”，并探索它们对量子问题的影响。我们的方法利用了弯曲空间中量子场理论的标准工具，并允许我们计算物理可观察物，例如驻留在弯曲的DE Sitter Spacetime中的粒子探测器的过渡概率，或者我们的质量强化黑洞。至关重要的是，这种情况代表了空间的真正量子叠加，与指标的叠加相反，指标的叠加仅因坐标转换而有所不同，因此根据一般相对论没有差异。
In the absence of a fully-fledged theory of quantum gravity, we propose a "bottom-up" framework for exploring quantum-gravitational physics by pairing two of the most fundamental concepts of quantum theory and general relativity, namely quantum superposition and spacetime. We show how to describe such "spacetime superpositions" and explore effects they induce upon quantum matter. Our approach capitalizes on standard tools of quantum field theory in curved space, and allows us to calculate physical observables like transition probabilities for a particle detector residing in curvature-superposed de Sitter spacetime, or outside a mass-superposed black hole. Crucially, such scenarios represent genuine quantum superpositions of spacetimes, in contrast with superpositions of metrics which only differ by a coordinate transformation and thus are not different according to general relativity.
