Speaker
Arthur Dromard
(Goethe University)
Description
The topological susceptibility is a very important quantity in QCD,
which can be computed using lattice methods. However, at fine lattice
spacing, or when using high quality chirally symmetric quarks, typical
simulation algorithms tend to become stuck in a single topological
sector. In such cases the computation of the topological susceptibility
is not anymore straightforward. Here we present two methods to extract
the topological susceptibilty from lattice QCD simulations restricted to
a single topological sector. The first method is based on the
correlation function of the topological charge density, while the second
method is based on measuring the topological charge within spacetime
subvolumes. Numerical results for QCD obtained by using both methods are
presented.
Primary author
Arthur Dromard
(Goethe University)
Co-authors
Dr
Krzysztof Cichy
(Goethe-Universität Frankfurt am Main)
Marc Wagner
(Goethe University Frankfurt)
Prof.
Wolfgang Bietenholz
(Universidad Nacional Autónoma de México)
