PIRSA:08060162

Large Scale Structure as a Probe of Gravitational Slip

(2008). Large Scale Structure as a Probe of Gravitational Slip. Perimeter Institute. https://pirsa.org/08060162

Large Scale Structure as a Probe of Gravitational Slip. Perimeter Institute, Jun. 05, 2008, https://pirsa.org/08060162 

          @misc{ pirsa_PIRSA:08060162,
            doi = {10.48660/08060162},
            url = {https://pirsa.org/08060162},
            author = {},
            keywords = {Quantum Fields and Strings, Particle Physics, Cosmology},
            language = {en},
            title = {Large Scale Structure as a Probe of Gravitational Slip},
            publisher = {Perimeter Institute},
            year = {2008},
            month = {jun},
            note = {PIRSA:08060162 see, \url{https://pirsa.org}}
          }
Talk number
PIRSA:08060162
Collection
Talk Type
Subject
Abstract
Many modified gravity schemes predict a non-zero difference (``gravitational slip\'\') between the Newtonian and longitudinal perturbed metric potentials. Such a slip would affect the growth of large scale structure without altering the expansion history of the universe. We quantify the slip with a new parameter varpi, show the effect of non-zero varpi on the growth of cosmic overdensities, and constrain its value using CMB and weak lensing data.