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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

CPT Student Seminar: Material models of dark energy.

Presented by Jonathan Pearson, Durham - CPT

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 for more information

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.