QCD, random matrix theory and the sign problem
- Event time: 2:00pm
- Event date: 28th November 2012
- Speaker: Jacques Bloch (University Regensburg)
- Location: Lecture Theatre A, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
At nonzero quark chemical potential lattice QCD simulations are severely hindered by the sign problem, which arises when the fermion determinant becomes complex. As the spectral properties of the Dirac operator are described by random matrix theory, the latter can be used to improve our understanding of the sign problem. In this talk I will discuss the correspondence between QCD and RMT in the presence of a chemical potential and will present a novel solution to the sign problem in dynamical simulations of random matrices.
The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..