32nd International Symposium on Lattice Field Theory (Lattice 2014)

Instanton-dyons induce both the chiral symmetry breaking and confinement

24 Jun 2014, 14:55

20m

415 Schapiro

Talk Vacuum Structure and Confinement Vacuum Structure and Confinement

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.

Presentation materials

Slides

shuryak_lattice14.pdf