出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present lattice QCD results on heavy quark free energies, extract from its temperature dependence
entropy and internal energy contributions, and discuss the onset of medium effects that lead
to screening of static quark-antiquark sources in a thermal medium. Most results are obtained in
(2+1)-flavour QCD on a line of constant physics with almost realistic quark masses and compared
to previous results from 2-flavor QCD as well as pure gauge theory. Furthermore, we discuss results
on the density dependence of screening masses that have been obtained using a leading order
Taylor expansion in the baryon chemical potential.
