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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.

Maths HEP Lunchtime Seminars: Black holes, trans-Planckian scattering and numerical relativity

Presented by Carlos Herdeiro, Porto

4 February 2011 13:00 in CM221

The basic two-body problem in General Relativity is a two
black hole system. This is a key system for gravitational
wave astronomy, since the collision of two black holes is
expected to be the most powerful astrophysical source of
gravitational radiation. The complete evolution of such
system, comprising inspiral, merger and ringdown stages,
can only be followed numerically. After 40 years of work,
the first successful numerical codes evolving such systems
were reported in 2005. In the last 5 years, the field of
numerical relativity has produced accurate and insightful
results concerning the full non-linear dynamical evolution
of black hole systems.

In this seminar I shall discuss a current research
programme to generalise the techniques of numerical
relativity, namely to arbitrary dimension. I shall focus
on the description of black hole collisions in higher
dimensions and their application to trans Planckian
scattering scenarios potentially testable in particle
accelerator experiments such as those at the LHC.

I shall present the wave forms and energy converted into
gravitational radiation for a head-on black hole collision
in a higher dimensional space-time, which we obtained for
the first time in 2010.


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