CPT Student Seminar: Material models of dark energy.
6 May 2014 17:00 in OC218
The problem of "dark energy" is rather simple: we don't know what substances are in the Universe which could make it accelerate (or, look like its accelerating): but, we know about 70% of the Universe must be made of it. There are many scalar field and modified gravity models on the market trying to describe these observations.
In this talk, I will look at a radically different type of theory: material models of dark energy. The theory of relativistic solids is used in a cosmological context, and is built up so that the theory of a relativistic viscoelastic solid can be used as a candidate dark energy model.
The rough idea is simple: generalise Hooke's law (built for a non-relativistic elastic solid), and make the theory relativistic. The work is based on my recent publication, arXiv 1403.1213.
Contact Daniel Martin
A gathering of mathematicians from the CPT group with physicists from IPPP, we meet to discuss our work in a relaxed and friendly environment.
An archive of previous years talks is kept here.