景观中的再热容积测量
Reheating-volume measure in the landscape
摘要：
我最近提出了“再加热体积”（RV）处方作为“多元宇宙”宇宙学中测量问题的可能解决方案。这项工作的目标是扩展RV措施涉及气泡成核的情况下，如弦论景观。在RV处方的精神，我建议计算分布的可观测量的景观，条件是在概率成核有限总数的泡沫的未来的初始泡沫。不同类型的气泡的相对数量的一般公式可以推导出来。我表明，RV措施是明确的，并独立于初始气泡类型的选择，只要该类型支持进一步的气泡成核。将RV测量应用于一般景观，我发现玻尔兹曼大脑的丰度与同一类型气泡中普通观察者的丰度相比总是微不足道。作为一个例子，我提出了明确的结果，一个玩具景观包含四个真空状态和景观与一个单一的高能量真空和大量的低能量真空。
英文摘要：
I recently proposed the "reheating-volume" (RV) prescription as a possible solution to the measure problem in "multiverse" cosmology. The goal of this work is to extend the RV measure to scenarios involving bubble nucleation, such as the string theory landscape. In the spirit of the RV prescription, I propose to calculate the distribution of observable quantities in a landscape that is conditioned in probability to nucleate a finite total number of bubbles to the future of an initial bubble. A general formula for the relative number of bubbles of different types can be derived. I show that the RV measure is well-defined and independent of the choice of the initial bubble type, as long as that type supports further bubble nucleation. Applying the RV measure to a generic landscape, I find that the abundance of Boltzmann brains is always negligibly small compared with the abundance of ordinary observers in the bubbles of the same type. As an illustration, I present explicit results for a toy landscape containing four vacuum states and for landscapes with a single high-energy vacuum and a large number of low-energy vacua.
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。
