Extension of an existing compute cluster by several compute servers

• Term: Funded in 2022
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 493420525

The goal of the proposal is an extension of the existing GoeGRID compute cluster to ensure sufficient compute power for the newly installed research group Heidrich-Meisner (Theoretical Solid State Physics) in the Institute for Theoretical Physics at the University of Göttingen. Moreover, all local research groups in Theoretical Physics face an increasing demand for compute resources. An extension of the existing GoeGRID cluster is preferable over the installation of a separate system, due to economic reasons and to ensure an optimum usage and access for all research groups. The extension will be integrated without changes to the existing architecture and software such that operations will run continuously. The research group Heidrich-Meisner uses numerical quantum many-body methods to investigate the nonequilibrium physics of correlated electron systems, the thermalization of closed quantum systems, and the topological properties of ultracold quantum gases. For these purposes, we use exact-diagonalization methods and, in particular, density matrix renormalization group techniques. Currently, we are further advancing numerical methods for the description of electron-phonon systems, for instance, for finite temperatures and the calculation of dynamical correlation functions. The research group Kehrein studies the nonequilibrium dynamics of many-body systems with a focus on quasi-particle descriptions and concepts from quantum information theory. A range of analytical, numerical semiclassical approaches, and numerical methods are employed. The research group Manmana uses matrix-product-state methods to study photoexcitations and quantum-quench problems in correlated systems. In addition, the existence of superconducting phases in generalized t-J models is of interest.

• DFG Programme: Major Research Instrumentation
• Major Instrumentation: Erweiterung eines bestehenden Rechenclusters um mehrere Compute Server
• Instrumentation Group: 7030 Dedizierte, dezentrale Rechenanlagen, Prozeßrechner
• Applicant Institution: Georg-August-Universität Göttingen
• Leader: Professor Dr. Fabian Heidrich-Meisner