Simulating full QCD at nonzero density using the complex Langevin equation

Understand

The complex Langevin method is extended to full QCD at non-zero chemical potential.

• The use of gauge cooling stabilizes the simulations at small enough lattice spacings.
• At large fermion mass the results are compared to the HQCD approach, in which the spatial hoppings of fermionic variables are neglected, and good agreement is found.
• The method allows simulations also at high densities, all the way up to saturation.