https://doi.org/10.1051/epjconf/201817507039
Improved convergence of Complex Langevin simulations
1
Department of Physics, University of Washington, Box 351560, Seattle, WA 98195, USA
2
Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, United Kingdom
3
CP3-Origins & Danish Institute for Advanced Study, Department of Mathematics and Computer Science, University of Southern Denmark, 5230 Odense M, Denmark
4
Institute for Theoretical Physics, ETH Zürich, CH-8093 Zürich, Switzerland
* Speaker, e-mail: jaeger@imada.sdu.dk
Published online: 26 March 2018
The sign problem appears in lattice QCD as soon as a non-zero chemical potential is introduced. This prevents direct simulations to determine the phase structure of the strongly interacting matter. Complex Langevin methods have been successfully used for various models or approximations of QCD. However, in some scenarios it converges to incorrect results. We present developments of our new method that helps to improve the convergence by keeping the system closer to the SU(3) manifold and discuss preliminary tests and results.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
