Speaker
Tamas G. Kovacs
(Institute for Nuclear Research, Debrecen)
Description
Across the finite temperature transition to the quark-gluon plasma, the QCD
topological susceptibility decreases sharply. Thus in the high temperature
phase the remaining topological objects (possibly calorons) form a weakly
interacting dilute gas. The overlap Dirac operator, through its exact zero
modes, allows one to measure the net topological charge. We show that
separately the number of positively and negatively charged topological objects
can also be extracted from the low-end of the overlap Dirac spectrum. We
study the dynamics of these topological objects and speculate on how they
might affect quark localization and through that deconfinement and chiral
symmetry restoration.
Author
Tamas G. Kovacs
(Institute for Nuclear Research, Debrecen)
Co-author
Mrs
Reka A. Vig
(University of Debrecen)
