Condensed Matter/Biophysics Seminar: Prof. Walter Poetz, University of Graz  Add To Calendar

  • Date(s): Monday, 12/4 2:00 PM to Monday, 12/4 3:30 PM
  • Speaker: Prof. Walter Poetz
  • Host: Prof. Andreas Schroeder
  • Campus Address: 2214 SES
Title: Lattice Simulations of Dirac Fermions: Applications to Topological Insulators

Abstract: In the first part of this talk we will present the solution to a long-standing problem: the complete avoidance of fermion doubling in finite-difference approximations (``lattice simulations”) to the Dirac equation. Both pure- and mixed-state dynamics within, respectively, Schroedinger and vonNeumann form will be investigated.  
In the second part, we will give numerical results from space-time resolved simulation of Dirac fermion dynamics (``spintronics”) on the surface of topological insulators in presence of electro-magnetic texture.

Cm-Bio 12-04 Poetz flyer