PIRSA:07050019

A Hamiltonian framework for cosmological perturbations to any order

APA

Dittrich, B. (2007). A Hamiltonian framework for cosmological perturbations to any order. Perimeter Institute. https://pirsa.org/07050019

MLA

Dittrich, Bianca. A Hamiltonian framework for cosmological perturbations to any order. Perimeter Institute, May. 01, 2007, https://pirsa.org/07050019

BibTex

          @misc{ pirsa_07050019,
            doi = {10.48660/07050019},
            url = {https://pirsa.org/07050019},
            author = {Dittrich, Bianca},
            keywords = {Quantum Gravity},
            language = {en},
            title = {A Hamiltonian framework for cosmological perturbations to any order},
            publisher = {Perimeter Institute},
            year = {2007},
            month = {may},
            note = {PIRSA:07050019 see, \url{https://pirsa.org}}
          }
          

Bianca Dittrich Perimeter Institute for Theoretical Physics

Abstract

We introduce a framework that allows to calculate cosmological perturbations in a gauge invariant manner to any order. The two main features of this framework are to take physical observables as basic objects and to treat the variables describing the background geometry as fully dynamical. Backreaction effects can therefore naturally adressed. At the end I will mention applications to Loop Quantum Cosmology.