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2016

Complex Langevin Dynamics in 1+1d QCD at Non-Zero Densities

Schmalzbauer, Sebastian, Bloch, Jacques

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We present our results obtained from gauge cooled complex Langevin simulations in 1+1d QCD at non-zero densities in the strong coupling regime with unrooted staggered fermions.

For small quark masses there are regions of the chemical potential where this method fails to reproduce correct results.
In these parameter ranges we studied the effect of different gauge cooling schemes on the distributions of the fermion determinant as well as of observables.

Complex Langevin Dynamics in 1+1d QCD at Non-Zero Densities · Around

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G. Aarts, E. Seiler and I.-O. Stamatescu, The Complex Langevin method: When can it be trusted? , Phys. Rev. D81
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2010
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E. Seiler, D. Sexty and I.-O. Stamatescu, Gauge cooling in complex Langevin for QCD with heavy quarks , Phys. Lett. B723
Original
2013
Earlier work this paper cites.

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Then

J. Bloch, J. Mahr and S. Schmalzbauer, Complex Langevin in low-dimensional QCD: the good and the not-so-good , PoS LATTICE2015
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K. Nagata, J. Nishimura and S. Shimasaki, Testing a generalized cooling procedure in the complex Langevin simulation of chiral Random Matrix Theory , PoS LATTICE2015
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J. Bloch, J. Meisinger and S. Schmalzbauer, Reweighting trajectories from the complex Langevin method , in Proceedings, 34th International Symposium on Lattice Field Theory (Lattice 2016) , 2016
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J. Bloch, Reweighting complex Langevin trajectories , in preparation (2016)
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