Numerical time integration and critical slowing down (B05)

• Subject Area: Mathematics
• Term: from 2013 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 35592816

Since lattice QCD simulations are computationally very expensive, their feasibility strongly relies on algorithmic developments. Project B05 contributes in three ways: 1.) Transfer the idea of adapted nested force gradient integrators to Lattice QCD applications; 2.) Employ reweighting techniques to change the parameters of a simulation instead of doing a new simulation. These techniques are applied to the computation of isospin mass effects and to the tuning to the physical point; 3.) Optimize the integration of the Wilson flow, which is widely employed in lattice QCD. This technique is applied to the computation of the critical temperature.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 55: Hadron Physics from Lattice QCD
• Applicant Institution: Universität Regensburg
• Project Heads: Professor Dr. Michael Günther; Professor Dr. Francesco Knechtli