Large-scale inhomogeneity of dark energy produced in the ancestor vacuum
Large-scale inhomogeneity of dark energy produced in the ancestor vacuum
We investigate large-scale inhomogeneity of dark energy in the bubble nucleation scenario of the universe. In this scenario, the present universe was created by a bubble nucleation due to quantum tunneling from a metastable ancestor vacuum, followed by a primordial inflationary era. During the bubble nucleation, supercurvature modes of some …