Twenty-Fourth Meeting of the North British Mathematical Physics Seminar

The twenty-fourth meeting of the North British Mathematical Physics Seminar will be held on Wednesday 8 July 2009 in Durham, in the Derman Christopherson Room of the Calman Early Learning Centre, next to the Department of Mathematical Sciences. These people have so far said they intend to come.


Coffee (in the Maths Dept, room CM211)
Richard Ward (Durham)
Arrays of BPS Monopoles, and Moduli-Space Dynamics
The talk deals with periodic arrays of BPS monopoles: either singly-periodic (monopole chains), or doubly-periodic (monopole sheets or walls). In the first half, we see how partial information about the geometry of the 2-monopole-chain moduli space --- an "ALG" gravitational instanton --- relates to the scattering of monopole chains. In the second half, I shall review monopole walls, and relate them to recent work on monopole bags.
Anatoly Konechny (Heriot-Watt)
Conformal perturbation theory beyond the leading order
Rafael Nepomechie (Miami)
The AdS_4/CFT_3 S-matrix
Exact S-matrices play a fundamental role in integrable 1+1 dimensional relativistic QFTs. This is also true in AdS_5/CFT_4. Indeed, an all-loops S-matrix has been proposed which leads to all-loops asymptotic Bethe ansatz equations and to exact finite-size results. In the recently-discovered AdS_4/CFT_3 correspondence, an exact S-matrix is again expected to play a fundamental role. This talk reviews a proposal for this S-matrix and some checks on its validity. (Based on joint work with Changrim Ahn.)
Chih-Hao Fu (Durham)
Generating MHV super-vertices
It has been shown that the CSW rules for gluon scattering amplitudes can be accounted for by canonically transformed Yang-Mills lagrangian. We extend the method to N=1 and N=4 SYM to generate the corresponding rules for supersymmetric theories. Vertices are found to agree with the formula for MHV super-amplitudes.
Mike Gillard (Durham)
Volume-preserving gradient flow

Practical Information

Train information can be obtained here.

For directions to the Department of Mathematical Sciences click here, here or here. The Calman Learning Centre is the big round building just next door; the Derman Christopherson Room is on the top floor.

Tea, coffee and biscuits will be provided free of charge. There will be a sandwich lunch for which participants might be charged (depending on funding).

Limited funds are available to help with travel expenses of participants with no other source of funding. We hope that this will encourage postgraduate students and postdocs to attend the meeting. Please email Patrick Dorey in advance if you would like to apply for support and please book early to take advantage of the cheaper fares.

Patrick Dorey
Last modified: 1 July 2009