PIRSA:12100090

Quantum Gravity Effects in the (Early and Late) Universe

APA

Alexander, S., Sudarsky, D., Litim, D. & Brandenberger, R. (2012). Quantum Gravity Effects in the (Early and Late) Universe. Perimeter Institute. https://pirsa.org/12100090

MLA

Alexander, Stephon, et al. Quantum Gravity Effects in the (Early and Late) Universe. Perimeter Institute, Oct. 23, 2012, https://pirsa.org/12100090

BibTex

          @misc{ pirsa_12100090,
            doi = {},
            url = {https://pirsa.org/12100090},
            author = {Alexander, Stephon and Sudarsky, Daniel and Litim, Daniel and Brandenberger, Robert},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Quantum Gravity Effects in the (Early and Late) Universe},
            publisher = {Perimeter Institute},
            year = {2012},
            month = {oct},
            note = {PIRSA:12100090 see, \url{https://pirsa.org}}
          }
          

Abstract

Quantum Gravity at the origin of seeds of cosmic structure?
This meeting shows a our impatience for uncovering at long last any signal of unknown physics that might have a quantum gravitational origin. I will argue that the transition from a homogenous and isotropic state characterizing the mid-early parts of inflation ( i.e. the regime after sufficient e- folds of inflation have elapsed so that all traces of the pre-inflationary state are erased), to those eras, where the primordial inhomogeneities have appears might hold ins testing clues about the nature of quantum gravity

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Quantum gravity and cosmology
In the light of upcoming high-precision data from the Planck mission and possible trans-Planckian signatures encoded in eg the microwave background radiation, and in view of possible large-distance modifications of gravity and the accelearted expansion of the universe