|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
If you have a question about this talk, please contact Ivan Agullo.
Screened modified gravity such as chameleon and symmetron gravity is a viable alternative to quintessence when addressing problems such as dark energy. To date, these theories have been largely phenomenological and few attempts at unifying them with the rest of particle physics has been made. Furthermore, these models generically require a cosmological constant in order to match observations. In this talk I will describe recent progress towards addressing these issues by presenting a globally supersymmetric framework for describing the low-energy behaviour of these theories. The inclusion of supersymmetry leads to strong restrictions on the types of models that are viable and I will describe these new features, which include density-dependent supersymmetry breaking and SUPER -screening. A cosmological constant emerges naturally within this framework at low cosmological densities. This framework can tell us a lot about potential UV completions of such theories; which ones are viable and, more importantly, which are not.
This talk is part of the DAMTP Friday GR Seminar series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsMajor Public Lectures in Cambridge Worms and Bugs Physics of Medicine Journal Club
Other talks1st Year Wednesday Seminars 2013 Geotechnical behavior of the energy piles The tidal stream power industry Discrete Fourier transform methods in the analysis of nonstationary time series A Heisenberg Miscellany M5-branes