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Workshop

Theoretical Cosmology in the Era of Large Surveys

Mar, 21 2016 - May, 13 2016




Organizers

 

Luca Amendola (University of Heidelberg, Germany) Claudia de Rham (Case Western Reserve University, USA) Ruth Durrer (University of Geneva, Switzerland) Martin Kunz (University of Geneva, Switzerland) Giovanni Marozzi (CBPF, Brazil) Sabino Matarrese (University of Padova, Italy) Valeria Pettorino (University of Heidelberg, Germany)



Contact
Giovanni.Marozzi@unige.ch

Related events
Theoretical Cosmology in the Era of Large Surveys (Conference) - May, 02 2016

GGI Focus Week on Large Scale Structure (Focus Week) - Apr, 05 2016




Abstract

How can we optimally exploit present and future large scale structure surveys to address questions about the nature of the Dark Energy, and to test the Standard Model of Cosmology and the Theory of Gravity on large scales?

In the next decades, we plan to continue the success story of the CMB with observations of CMB polarisation and to go beyond with surveys of the large scale structure of the Universe. The potential of large scale structure surveys is substantial as they deliver three dimensional data sets, i.e. we can observe the large scale structure at many different redshifts. The new generation of observations are already starting with the currently active Dark Energy Survey (DES), and they continue with upcoming data of the SDSS survey and especially with data of the Euclid satellite (to be launched in 2020), the large synoptic survey telescope (LSST) and the Square Kilometer Array (SKA) radio telescope.

The purpose of this meeting is to bring together theoretical  and observational cosmologists to take stock of the current state of the field and to look forward to the next generation of surveys.




Topics

- Inflation and the Early Universe,
- Dark Energy, Dark Matter and Modified Gravity,
- Testing General Relativity with LSS surveys,
- Large-scale Surveys: observables, forecasts and methodology, from data to theory,
- The Cosmic Microwave Background: polarisation and anisotropies.

 


General Program


The 3rd and 6th weeks of the workshop will be two focus weeks on, respectively, LSS theory and dark energy / modified gravity models, while the 7th week will be dedicated to the workshop conference. During these two focus weeks there will be a large concentration of talks, while we plan a more light schedule for the rest of the workshop, allowing plenty of time for discussions and collaborations.

 

 






Talks
Mar, 23 2016 - 15:00 Carlo Baccigalupi Background and Foregrounds for CMB B-mode Experiments Seminar

We review the status of CMB B-mode measurements, focussing on the challenge
represented by the control and removal of foreground emissions. We describe
the ongoing and future experimental efforts, and the expected scientific outcome
in the near future.

Mar, 24 2016 - 15:00 Chiara Caprini Gravitational waves (discovery and future) Seminar
Mar, 29 2016 - 11:00 Tomi Koivisto tba Seminar
Mar, 30 2016 - 11:00 Ghazal Geshnizjani The ABC s of generating scalar and tensor power spectrum Seminar
Mar, 31 2016 - 11:00 Alan Heavens Bayesian Hierarchical Modelling of Weak Lensing Seminar
Mar, 31 2016 - 15:00 Kenji Kadota Constraining dark matter-baryon interactions from cosmology and particle physics. Seminar
Mar, 29 2016 - 15:00 Niayesh Afshordi Neutrino masses from neutrino-halo relative velocities Seminar
Apr, 01 2016 - 15:00 Marco Peloso Dissipation during inflation Seminar
Apr, 01 2016 - 11:00 Azedeh Malaknejad Polarized Gravitational Waves in Axion Inflation and the Origin of Baryon Asymmetry Seminar
Apr, 11 2016 - 15:00 Albert Stebbins Reserve Engineering Space-Time Seminar

A major aspect of modern observational cosmology is determining the geometry of space-time.   Evidence for dark matter and "dark energy" are really statements about space-time geometry.  Focusing on geometry circumvents questions of whether these phenomena are caused by exotic matter or modifications of gravity.  It is shown how geometry can be simply expressed in terms of observable quantities, some of which are currently in use for cosmology, and some of which we can expect to use in coming decades.  This analysis reveals glaring holes in our direct measurement of geometry and it is shown how these holes have been filled in by other assumptions about our universe.

Apr, 13 2016 - 11:00 Luigi Pilo (Thermo)-dynamics of self-gravitating media Seminar
Apr, 14 2016 - 11:00 Robert Brandenberger Searching for Cosmic Strings in New Observational Windows Seminar
Apr, 19 2016 - 11:00 Sandora McCullen The fine Structure Constant and Habitable Planets Seminar
Apr, 20 2016 - 11:00 Mariele Motta Gravitational slip in modified gravity theories Seminar
Apr, 21 2016 - 11:00 Gianpiero Mangano An update about (eV) sterile neutrinos in cosmology Seminar
Apr, 22 2016 - 11:00 Lucila Kraiselburd Chasing Chaneleons Seminar Slides
May, 10 2016 - 15:00 Leonardo Senatore Inhomogeneous Anisotropic Cosmology Seminar
May, 11 2016 - 11:30 Rogerio Rosenfeld Combining cluster number counts and galaxy clustering Seminar
May, 12 2016 - 11:30 Bruce Bassett The future of artificial intelligence: from SKA to machine-lead research Seminar

We review current progress in machine learning and artificial intelligence (AI) and its application to both astronomy — building towards LSST and SKA — and more generally.  We then discuss the implications of the exponential increase in AI capabilities for the next twenty years. In particular we address the question  “Will AI ever be able to do (good) research?"