QCD at nonzero chemical potential: recent progress on the lattice

Abstract

We summarise recent progress in simulating QCD at nonzero baryon density using complex Langevin dynamics. After a brief outline of the main idea, we discuss gauge cooling as a means to control the evolution. Subsequently we present a status report for heavy dense QCD and its phase structure, full QCD with staggered quarks, and full QCD with Wilson quarks, both directly and using the hopping parameter expansion to all orders.

Comments: 9 pages, based on a plenary talk at XIth Quark Confinement and the Hadron Spectrum, September 8-12, 2014, St. Petersburg, Russia