Exploring the phase diagram of QCD with complex Langevin simulations

Abstract

Simulations of QCD with a finite chemical potential typically lead to a severe sign problem, prohibiting any standard Monte Carlo approach. Complex Langevin simulations provide an alternative to sample path integrals with oscillating weight factors and therefore potentially enable the determination of the phase diagram of QCD. Here we present results for QCD in the limit of heavy quarks and show evidence that the phase diagram can be mapped out by direct simulation. We apply adaptive step-size scaling and adaptive gauge cooling to ensure the convergence of these simulations.

7 pages, 6 figures, talk presented at the 32nd International Symposium on Lattice Field Theory (Lattice 2014), 23-28 June 2014, New York, USA

Cited by in corpus (4)

• The Hot QCD White Paper: Exploring the Phases of QCD at RHIC and the LHC
• Exploring the properties of the phases of QCD matter - research opportunities and priorities for the next decade
• QCD at nonzero chemical potential: recent progress on the lattice
• Hopping parameter expansion to all orders using the complex Langevin equation