On $\mathbb{P}_{Berk}^1$ and Coarse-Grainings of Non-Archimedean Product Spaces

Abstract

We determine the relationship between $\mathbb{C}_p^\times \times \mathbb{C}_p$ and a Berkovich space via an equivalence relation obtained by coarse-graining. This process also establishes a correspondence between $p$-adic fields and Bruhat-Tits trees. From this space, we give a previously unknown construction of the Berkovich projective line $\mathbb{P}_\text{Berk}^1$ and outline a direction for the development of a comprehensive theory of non-Archimedean AdS/CFT and consequently, adelic AdS/CFT, enabled by this construction.