Quark Matter 2014 - XXIV International Conference on Ultrarelativistic Nucleus-Nucleus Collisions

19-24 May 2014
Europe/Zurich timezone

Simulating full QCD at nonzero density using the complex Langevin equation

20 May 2014, 12:10
20m

helium

Contributed Talk QCD at High Temperature and/or Density

Speaker

Denes Sexty (University of Heidelberg)

Description

The complex Langevin method is extended to full QCD at non-zero chemical potential. The method evades the sign problem which makes naive simulations at nonzero density impossible. The procedure 'gauge cooling' is used to stabilize the simulations at small enough lattice spacings. The method allows simulations also at high densities, all the way up to saturation. The method is validated in the small chemical potential region, where the sign problem is mild, and the reweighting approach is also feasible.
On behalf of collaboration: None

Primary author

Denes Sexty (University of Heidelberg)

 Slides