Hotzy, P., Müller, D., & Boguslavski, K. (2022, September 7). Towards stabilizing the Complex Langevin method for the real-time evolution of non-Abelian gauge theories [Conference Presentation]. The 8th International Workshop on the Sign Problem in QCD and Beyond, Tel Aviv, Austria.
The 8th International Workshop on the Sign Problem in QCD and Beyond
5-Sep-2022 - 9-Sep-2022
Tel Aviv, Austria
High Energy Physics
Lattice Field Theory; Complex Langevin
The Complex Langevin (CL) method is a promising approach to overcome the numerical sign problem which renders the calculation of expectation values in theories with complex actions unfeasible for standard numerical methods. Over the past decade, important stabilisation techniques for CL have been developed with major applications in finite density QCD. In this work we use them for real-time SU(2) Yang-Mills simulations based on the Schwinger-Keldysh formalism. We improve these techniques for the real-time case to avoid numerical instabilities and to alleviate the problem of wrong convergence.