PIRSA:13070036

Some Possible Ways to Observe Consequences of Loop Quantum Gravity

Barrau, A. (2013). Some Possible Ways to Observe Consequences of Loop Quantum Gravity. Perimeter Institute. https://pirsa.org/13070036

Barrau, Aurelien. Some Possible Ways to Observe Consequences of Loop Quantum Gravity. Perimeter Institute, Jul. 22, 2013, https://pirsa.org/13070036 

          @misc{ pirsa_PIRSA:13070036,
            doi = {10.48660/13070036},
            url = {https://pirsa.org/13070036},
            author = {Barrau, Aurelien},
            keywords = {},
            language = {en},
            title = {Some Possible Ways to Observe Consequences of Loop Quantum Gravity},
            publisher = {Perimeter Institute},
            year = {2013},
            month = {jul},
            note = {PIRSA:13070036 see, \url{https://pirsa.org}}
          }

Aurelien Barrau Laboratoire de Physique Subatomique et de Cosmologie (LPSC Grenoble)

DOI 10.48660/13070036
Collection
Talk Type Conference

Abstract

In this talk, I'll briefly review some possible observational consequences of loop quantum gravity. I will first address the issue of the closure of the algebra of constraints in holonomy-corrected effective loop quantum cosmology for tensor, vector, and scalar modes. I will underline some unexpected features like a possible change of signature. The associated primordial power spectrum and the basics of the related CMB analysis will be presented. The "asymptotic silence" hypothesis will be mentioned as a promising alternative. Then, I'll address the issue of the probability for inflation and the prediction of its duration from a new perspective. Finally, I'll present some prospect about the evaporation of black holes in LQG.