Speaker
Prof.
Uli Schollwöck
(LMU Munich)
Description
The simulation of correlated real materials remains one of the big challenges of solid state physics, in particular due to the fact that the physical behaviour is often determined by energy scales which are extremely small compared to the raw scales of the substances. In this talk I will discuss how extending time evolution into the complex plane alleviates entanglement issues to an extent that we may calculate precise Green’s functions, self-energies and spectral functions at very low frequencies (of the order of 0.001 of bandwidth), which is the scale that has to be resolved to understand correlated metals in a realistic setting.
