Speaker
Prof.
Edward Shuryak
(Stony Brook)
Description
QCD topology -- mostly instantons -- had been used in the past to explain near-zero Dirac states and chiral symmetry breaking. At $T \sim T_c$ instanton are known to get
decomposed into $N_c$ instanton-dyons. Several lattice observation were naturally
explained by instanton-dyons.
Their partition function is now numerically generated: the statistical ensemble is then used to get spectrum of Dirac eigenstates: that is found
to produce both chiral broken and restored (gapped) spectra, as a function of $T$ and $N_f$. Another development is account for the back reaction, from dyons to holonomy potential. Somewhat unexpectedly, that was recently shown to induce a (quasi) confining phase transition, in which the Polyakov line jumps to zero value.
Primary author
Prof.
Edward Shuryak
(Stony Brook)
