August 30, 2010 to September 24, 2010
Nordita
Europe/Stockholm timezone

What can graphene teach us about the bridge between quantum field theory and kinetic theory?

Sep 3, 2010, 2:30 PM
1h
132:028 (Nordita)

132:028

Nordita

Speaker

Janik Kailasvuori (MPIPKS (Dresden))

Description

Semiclassical spin-coherent kinetic equations can be derived from quantum theory with many different formalisms. For 2d Dirac electrons (e.g. in graphene, 3d topological insulators, ...) we found to our surprise that well established formalisms give different results. We have been able to point out the exact source of the discrepancy and raise fundamental questions about how to derive semiclassical kinetic equation when some quantum coherence must be retained. Further, in monolayer graphene we make the unintuitive finding that there could be finite electron-hole coherent quantum effects even far away from the point where electron and hole bands touch.

Presentation materials