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Research lectures, seminars and events

The events listed in this area are research seminars, workshops and lectures hosted by Durham University departments and research institutes. If you are not a member of the University, but  wish to enquire about attending one of the events please contact the organiser or host department.


February 2018
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Events for 2 February 2018

'Hell, Heaven and Hope. A journey through life and the afterlife with Dante', Exhibition curated by Dr Annalisa Cipollone

9:00am to 11:55pm, Palace Green Library, Durham University

Contact for more information about this event.

Andrea Fontanella: Integrability in lower dimensional AdS/CFT

1:00pm, CM221

In this talk, I shall consider integrable scattering processes of massless string modes in AdS2 and AdS3 backgrounds.
In the first part, I will present a formulation of the Bethe ansatz in an AdS2 background by using a technique first developed in condensed matter. This technique relies on an particular algebraic equation which the S-matrix entries must satisfy, the so-called “free-fermion condition’’.
This technique allows us to overcome the problem of lack of reference state in AdS2 backgrounds, which prevented for many years the Bethe ansatz formulation within the standard procedure.
In the second part, I shall focus on an AdS3 background. I will show that the S-matrix, in addition to the background isometry, admits a further symmetry, the so-called "quantum deformed 2D Poincaré group". I will show how the novel symmetry allows us to interpret geometrically the scattering process in the fibre bundle language.
This talk is based on arXiv:1608.01631 [hep-th] and arXiv:1706.02634 [hep-th].

Contact, for more information about this event.

Serguei Komissarov: The Incredible Crab Nebula

2:00pm, CM219

The Crab Nebula is one of the most iconic astronomical objects which was, is and will keep making a very strong impact on the development of astrophysics for some time to come. The nebula was created by one of the historic supernovae almost two thousand years ago, but it is constantly invigorated by a powerful relativistic magnetised wind produced by the Crab pulsar. The interaction of this wind with the nebula leads to some spectacularly dynamic phenomena in its inner region: the famous jet, torus, wisps and few bright peculiar knots. Whether it is the dynamics of relativistic plasma, properties of relativistic shock waves, magnetic reconnection, or mechanisms of non-thermal particle acceleration, the Crab Nebula is a unique space laboratory to study all these phenomena which are important in many other areas of high energy astrophysics. In my talk, I will focus on some of the recent advances in the astrophysics of the Crab Nebula, describe what we have learned from these and what still remains poorly understood.

Contact for more information about this event.