Holographic eternal multiverse

Abstract

We propose a novel eternal multiverse model whose inflationary dynamics is described by a dual theory stating that the inflationary bulk universe is holographically identical to the lower dimensional boundary theory. By introducing the order measure for the expansion width of the inflating bubble universe, we obtain a relationship between the order measure and the boundary area, recovering the area-entropy law of Bekenstein. As a second aspect of the study, we explore the effect of order measure on the scale factor measure of the nucleating bubble multiverses in IR and UV limits, giving consistent results with the previous holographic multiverse models.