HQS@HPC: High Correlated Quantum-Systems on Supercomputers

Project summary

HQS@HPC aims to develop and advance numerical methods in order to tackle problems connected to highly correlated quantum systems on present-day supercomputers.

KONWIHR funding and follow-up projects

  • initial KONWIHR funding: 01/2002 - 12/2004
  • intermediat funding in the years 2005-2007
  • HQS@HPC-II continues the work of HQS@HPC with a special focus on phase transtions and transport processes in highly correlated materials and optimization strategies for large-scale diagonalization codes


  • Dr. Georg Hager, Regionales Rechenzentrum Erlangen
  • Prof. Dr. Holger Fehske, Institut für Physik, Universität Greifswald

Selected publications

  • H. Fehske, G. Wellein, J. Loos, A.R. Bishop: Localized polarons and doorway vibrons in finite quantum structures, Phys. Rev. B, 77 (2008) 085117. External link: DOI: 10.1103/PhysRevB.77.085117
  • M. Hohenadler, G. Hager, G. Wellein, H. Fehske: Carrier-density effects in many-polaron systems, J. Phys.: Condens. Matter, 19:(25) (2007) 255202. External link: DOI: 10.1088/0953-8984/19/25/255202
  • M. Hohenadler, G. Wellein, A. R. Bishop, A. Alvermann, H. Fehske: Spectral signatures of the Luttinger liquid to charge-density-wave transition, Phys. Rev. B., 74 (2006) 245120. External link: DOI: 10.1103/PhysRevB.74.245120
  • G. Hager: A Parallelized Density Matrix Renormalization Group Algorithm and its application to strongly correlated quantum systems, Dissertation, Mathematisch-Naturwissenschaftliche Fakultšt, Universitšt Greifswald, (2005). External link: E-Diss
  • G. Hager, G. Wellein, E. Jeckelmann, H. Fehske: Stripe formation in doped Hubbard ladders, Phys. Rev. B, 71 (2005) 075108. External link: DOI: 10.1103/PhysRevB.71.075108
  • G. Hager, E. Jeckelmann, H. Fehske, G. Wellein: Parallelization strategies for density matrix renormalization group algorithms on shared-memory systems, J. Comp. Phys, 194:(2) (2004) 795-808.

For a full list please check the following external web pages: