Status and open Problems in Lattice Gauge Theory Computations (Prof. K. Jansen)

  • Datum: 30.03.2015
  • Uhrzeit: 11:30 - 14:00
  • Vortragende(r): Prof. Dr. Karl Jansen, Desy Zeuthen
  • Raum: Herbert Walther Lecture Hall
  • Gastgeber: MPQ, Theory Division
The strong interactions of elementary particles are described theoretically in the framework of Quantum Chromodynamics (QCD).

The most promising way to solve QCD is given by numerical simulations using Markov Chain Monte Carlo (MCMC) Methods, in which the space-time continuum is replaced by a lattice.

We shall demonstrate that since the invention of this approach by K. Wilson the conceptual, algorithmic and supercomputer developments have progressed so much that today realistic simulations of lattice-QCD become possible, bringing us close to a, at least, numerical solution of QCD. As some examples, we will show results for the hadron spectrum, resonances and the structure of nucleon. We will also discuss open problems, in particular those where MCMC methods are not applicable and where tensor network techniques have a strong potential to make substantial progress.

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