PIRSA:13090073

Video URL

https://pirsa.org/13090073

The World is Discrete

Dreyer, O. (2013). The World is Discrete. Perimeter Institute for Theoretical Physics. https://pirsa.org/13090073

Dreyer, Olaf. The World is Discrete. Perimeter Institute for Theoretical Physics, Sep. 19, 2013, https://pirsa.org/13090073 

          @misc{ scivideos_PIRSA:13090073,
            doi = {10.48660/13090073},
            url = {https://pirsa.org/13090073},
            author = {Dreyer, Olaf},
            keywords = {Quantum Gravity},
            language = {en},
            title = {The World is Discrete},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2013},
            month = {sep},
            note = {PIRSA:13090073 see, \url{https://scivideos.org/pirsa/13090073}}
          }

Olaf Dreyer Freelance Consultant

Talk numberPIRSA:13090073
DOI10.48660/13090073
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

We argue that the scale-free spectrum that is observed in the cosmic microwave background is the result of a phase transition in the early universe.  The observed tilt of the spectrum, which has been measured to be 0.04, is shown to be equal to the anomalous scaling dimension of the correlation function.  The phase transition replaces inflation as the mechanism that produces this spectrum. The tilt further indicates that there is a fundamental small length scale in nature that we have not yet observed in any other way.