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Valentin Assassi (DAMTP/ University of Cambridge)
Friday 06 June 2014, 13:00-14:00
Towards an Effective Field Theory of Structure Formation
- đ¤ Speaker: Valentin Assassi (DAMTP/ University of Cambridge)
- đ Date & Time: Friday 06 June 2014, 13:00 - 14:00
- đ Venue: Pavilion B Potter Room (B1.19)
Abstract
Over the next decade, large scale structure (LSS) surveys will play an increasingly important role in the measurement of cosmological parameters and as a probe of initial conditions. Relating the observed galaxies to the physics of the early universe requires a good understanding of several late-time sources of non-linear effects. In this talk, I will explain how, looking at large scales, effective field theory (EFT) offers a natural framework to deal with these non-linearities. After reviewing the recently developed effective field theory of large scale structure, I will explain how the halo model – a model relating the density of dark matter halo to the underlying dark matter density – can be understood in the context of EFT . In the final part of the talk, I will show explicit computations of halo statistics and discuss their observational consequences.
Series This talk is part of the DAMTP Friday GR Seminar series.
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