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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.

Centre for Particle Theory Colloquia: Gravitational Approaches to the Challenges of Modern Cosmology

Presented by Mark Trodden, UPenn

21 February 2012 16:00 in CLC202

Einstein's general theory of relativity (GR) is one of the most
successful and well-tested physical theories ever developed.
Nevertheless, modern cosmology poses a range of questions, from the
smallest scales to the largest, that remain currently unresolved by GR
coupled to the known energy and matter contents of the universe. This
raises the logical possibility that GR may require modification on the
relevant scales.

I will discuss the status of some modern approaches to alter GR to
address cosmological problems. We shall see that these efforts are
extremely theoretically constrained, leaving very few currently viable
approaches. Meanwhile, observationally, upcoming missions promise to
constrain allowed departures from GR in exciting new ways,
complementary to traditional tests within the solar system.

Contact for more information

Coffee and biscuits at 15:30 in CM 211 (Maths Coffee Room).