出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We represent thin and dressed Polyakov loops as spectral sums of eigenvalues of differential operators
on the lattice. For that purpose we calculate complete sets of eigenvalues of the staggered
Dirac and the covariant Laplace operator for several temporal boundary conditions. The spectra
from different boundary conditions can be combined such that they represent single (thin)
Polyakov loops, or a collection of loops (dressed Polyakov loops). We analyze the role of the
eigenvalues in the spectral sums below and above the critical temperature.
