The University of Queensland
Department of Mathematics
Mathematical Physics Seminar
Studies of Correlation Functions in Quantum Field Theories on the Lattice using Unconventional Techniques.
Dr Chris Allton
University of Wales Swansea
(currently visiting UQ)
Thurday, July 11, 1pm
Room 641, Priestley (Mathematics) Building
An introduction is given to the Lattice technique of simulating Quantum Field Theories. This method discretises space-time and is well established as the best model-free (i.e. systematically improvable) method of studying stongly interacting field theories. The conventional approach to determining the spectrum of these theories is to study the long-distance tail of correlation functions, and effectively ignoring short-distance behaviour. In this talk I present two alternative approaches to the study of correlation functions which include short-distance effects. The first is an analytic approach based on the operator product expansion, and the second is a numerical approach which utilises the Maximum Entropy Method of Bayesian statistics.
All interested are invited to attend.
Enquires to Yao-Zhong Zhang on 3365 2309 or yzz@maths.uq.edu.au