PIRSA:11060044

Holographic multiverse and the measure problem

APA

Vilenkin, A. (2011). Holographic multiverse and the measure problem. Perimeter Institute. https://pirsa.org/11060044

MLA

Vilenkin, Alexander. Holographic multiverse and the measure problem. Perimeter Institute, Jun. 21, 2011, https://pirsa.org/11060044

BibTex

          @misc{ pirsa_11060044,
            doi = {10.48660/11060044},
            url = {https://pirsa.org/11060044},
            author = {Vilenkin, Alexander},
            keywords = {Cosmology},
            language = {en},
            title = {Holographic multiverse and the measure problem},
            publisher = {Perimeter Institute},
            year = {2011},
            month = {jun},
            note = {PIRSA:11060044 see, \url{https://pirsa.org}}
          }
          

Alexander Vilenkin Tufts University

Abstract

We explore the duality, conjectured in earlier work, between the wave function of the multiverse and a 3D Euclidean field theory on the future boundary of spacetime. 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 measure corresponds to a cutoff at surfaces of constant comoving apparent horizon.