The twenty-seventh meeting of the North British Mathematical
Physics Seminar was held on **Thursday 30 September
2010** in Durham, in rooms CM221 and CM107 of the Department of
Mathematical Sciences.
These
people came.
The original page announcing the meeting is here.

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Bernd Schroers

Department of Mathematics

Heriot-Watt University

Riccarton

Edinburgh EH14 4AS

Please note that forms completed manually will
Department of Mathematics

Heriot-Watt University

Riccarton

Edinburgh EH14 4AS

11:00-11:30

Coffee (in the Maths Dept, room CM211)

11:30-12:25

Alessandro Torrielli
(York)

We will review integrability and the role of quantum group
symmetries and their representations in the spectral problem of
supersymmetric Yang-Mills theory, and the relevance for the AdS/CFT
conjecture.

12:30-13:45

Lunch

13:45-14:40

Robert Weston
(Heriot-Watt)

I will present a common algebraic setting for Q-operators and defects
in
the XXZ and sine-Gordon models and
discuss the connection with the work of Bowcock, Corrigan and Zambon.

14:45-15:40

Arjun Bagchi
(Edinburgh)

Non-relativistic versions of AdS/CFT have been a popular venue of
recent research. In this talk, I look at the version which can be best
motivated as the true non-relativistic limit of the conjecture. The
relativistic conformal algebra on the boundary is systematically
reduced to what we call the Galilean Conformal Algebra by a process of
parametric group contraction. This new algebra is surprising in many
aspects, the most intriguing of which is the fact that it can be given
an infinite lift in any space-time dimensions. This algebra is also
important to non-relativistic hydrodynamics. I look at some
interesting features of the two dimensional GCA.The bulk dual of the
system is proposed as a novel Newton-Cartan like structure of Anti
de-Sitter space-time. The GCA is obtained as the asymptotic symmetries
of this novel structure. Several other comments on more recent
research would also be made.

15:45-16:30

Tea

16:30-16:55

Alex Torres-Gomez
(Nottingham)

Our starting point is an action that describes a general
diffeomorphism invariant gauge theory for a group G. The Minkowski
background then breaks the gauge group by selecting in it a preferred
gravitational SU(2) subgroup. We expand the action around this
background and find the spectrum of linearized theory to consist of
the usual gravitons plus Yang-Mills fields charged under the
centralizer of the SU(2) in G. In addition, there is a set of Higgs
fields that are charged both under the gravitational and Yang-Mills
subgroups.

17:00-17:25

Andrew Ciavarella
(Durham)

Among the spinning string solutions that have proved useful in testing
the AdS/CFT correspondence are the giant magnons, which when attached
to a giant graviton create a boundary giant magnon. We will discuss
the boundary giant magnons on R x S^2 from three different
perspectives: as string solutions, as their Pohlmeyer reduced versions
in sine-Gordon theory and as BIon spikes of a D3-brane giant graviton.

Patrick Dorey
Last modified: 1 October 2010