Andersen Group El.-Phon. QMC C60 GW Resistivity saturation

Quantum Monte-Carlo calculation

Quantum Monte-Carlo (QMC) methods are often used as a way of obtaining accurate or even (almost) exact results. This is particularly useful for systems with strong interaction effects, where other methods usually involve uncontrolled approximations. We have focussed on rather complicated systems, like the Fullerenes, where ab initio calculations are hard to carry out. Our work has therefore been based on model calculations.

The work has focussed on the following methods:
A projection T=0 fixed node QMC method for treating fermion systems
A determinantal finite T QMC method for treating fermion-boson systems
An auxialliary field QMC method for fermion systems with orbital degeneracy.

A list of publication is given here.

For further information contact Olle Gunnarsson (gunnar@and.mpi-stuttgart.mpg.de) or Erik Koch (koch@and.mpi-stuttgart.mpg.de).

Max-Planck Institut für Festkörperforschung
Postfach 800 665 D-70506 Stuttgart
Andersen Group Max-Planck-Institut für Festkörperforschung
Heisenbergstraße 1 D-70569 Stuttgart