
TL;DR
This paper investigates how the multiverse's inflationary dynamics can be represented by a conformally invariant boundary theory, proposing a measure derived from a UV cutoff for probabilistic predictions.
Contribution
It introduces a boundary-based approach to encode multiverse dynamics and proposes a new measure for probabilistic predictions using a UV cutoff in the boundary theory.
Findings
Boundary theory encodes multiverse dynamics
Proposes a measure based on UV cutoff
Links boundary theory to scale factor cutoff
Abstract
We explore the idea that the dynamics of the inflationary multiverse is encoded in its future boundary, where it is described by a lower dimensional theory which is conformally invariant in the UV. We propose that a measure for the multiverse, which is needed in order to extract quantitative probabilistic predictions, can be derived in terms of the boundary theory by imposing a UV cutoff. In the inflationary bulk, this is closely related (though not identical) to the so-called scale factor cutoff measure.
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