测量微调
Gauging Fine-Tuning
摘要：
我们介绍了一个数学框架，在一般的物理设置量化微调。特别是，我们确定了两个不同的角度微调，即本地和全球的角度-并制定相应的措施。这些措施广泛适用于设置的特点是任意数量的观测值是依赖于一个任意数量的参数。我们通过量化微调来说明我们的形式主义，因为它出现在两个相关的天体物理环境中：（i）在宇宙中的暗物质的显着比例是原始黑洞的形式的模型中，以及（ii）在从宇宙暴胀的基础模型中导出可居住的暗物质晕中的质子比例的情况下。
英文摘要：
We introduce a mathematical framework for quantifying fine-tuning in general physical settings. In particular, we identify two distinct perspectives on fine-tuning, namely, a local and a global perspective --- and develop corresponding measures. These measures apply broadly to settings characterized by an arbitrary number of observables whose values are dependent on an arbitrary number of parameters. We illustrate our formalism by quantifying fine-tuning as it arises in two pertinent astrophysical settings: (i) in models where a significant fraction of the dark matter in the universe is in the form of primordial black holes, and (ii) in scenarios that derive the fraction of protons in habitable dark-matter halos from underlying models of cosmic inflation.
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。
