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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:C10010 - Fundamental Physics and Large Scale Structure (2010)PODCAST Subscribe to podcast

Fundamental Physics and Large Scale Structure

Organizer(s):

Collection URL: http://pirsa.org/C10010

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The Galileon as a local modification of gravity
Speaker(s): Alberto Nicolis
Abstract: TBA
Date: 29/04/2010 - 2:00 pm

Galilean Genesis: an alternative to inflation
Speaker(s): Paolo Creminelli
Abstract: I will discuss an alternative to inflation based on a Galileon field. The model starts in a (contracting or expanding) quasi Minkowski phase and all the energy of the Universe in generated suddenly in a sort of Genesis associated with a strong violation of the Null Energy Condition. The symmetries o... read more
Date: 29/04/2010 - 2:45 pm

21cm cosmology
Speaker(s): Ue-Li Pen
Abstract: TBA
Date: 29/04/2010 - 4:00 pm

Non-linear structure formation in modified gravity
Speaker(s): Fabian Schmidt
Abstract: Instead of adding another dark component to the energy budget of the Universe, one can ask whether the observed accelerated expansion might in fact be due to the behavior of gravity itself on the largest scales. In this talk I will focus on two popular modified gravity theories which realize this s... read more
Date: 29/04/2010 - 4:45 pm

Tidal Alignments &amp; Large Scale Structure
Speaker(s): Chris Hirata
Abstract: TBA
Date: 30/04/2010 - 9:00 am

Magnification of High-z Galaxies
Speaker(s): Bhuvnesh Jain
Abstract: TBA
Date: 30/04/2010 - 9:45 am

Robustness and Violations of a Scalar Equivalence Principle
Speaker(s): Lam Hui
Abstract: Modified gravity theories under consideration typically reduce to a scalar-tensor form in the appropriate limits. I will discuss in what sense a universal scalar coupling is stable against quantum corrections, when the scalar equivalence principle is violated, how to look for such violations, and t... read more
Date: 30/04/2010 - 11:00 am

Large Scale Structure from ACT: The Atacama Cosmology Telescope
Speaker(s): Suzanne Staggs
Abstract: TBA
Date: 30/04/2010 - 11:45 am

Strong Lensing on Galaxy Cluster Scales
Speaker(s): Michael Gladders
Abstract: The statistics of strong lensing by galaxy clusters are sensitive both to cosmology and the detailed physics that determines the structure of halos. To exploit these sensitivites requires large and well defined samples of lenses on these mass scales. I will report on efforts to provide such samples ... read more
Date: 30/04/2010 - 2:00 pm

The Suprime Survey: A large shear-selected sample of galaxy clusters at z = 0.1 - 0.8
Speaker(s): James Taylor
Abstract: TBA
Date: 30/04/2010 - 2:45 pm

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