Modelling of condensed matter systems

This Simulation and Data Lab (SDL) is an informal group working on electrical, optical and transport properties of nanoscale semiconductor systems, two-dimensional electron gases in semiconductor heterostructures, quasi-one-dimensional electron systems in quantum wires, and quasi zero-dimensional electron systems in quantum dots. The emphasis has been on the shape and topology of the systems and the effects of the mutual interaction of their constituents. Commonly, the systems have been in an external homogeneous magnetic field.

Methodology

The group is working on open or closed systems using a mixture of analytical and numerical approaches to quantum many-body systems. The group has been using either discrete grids or continuous functional spaces representing systems in real or reciprocal space. The group emphasizes the use of highly parallel numerical approaches using FORTRAN with OpenMP on CPUs and CUDA with CuBLAS and MAGMA on GPUs, and a combination of CPU and GPU processing in heterogeneous computations.

Together with Nzar Rauf Abdullah the group has entered the field of material science
applying DFT methods to study electrical, optical and thermal effects of various types of
doped graphene sheets.

The group understands very well the role of reductionism and simple models in the history
of physics, but wants to emphasize at the same time the importance of complexity and its
role in many natural phenomena around us. This issue can only be well addressed with the
powerful parallel processing facilities available today.

Members

Prof. Vidar Gudmundsson, University of Iceland, Iceland

Prof. Andrei Manolescu, Reykjavik University, Iceland

Dr. Nzar Rauf Abdullah, University of Sulaimani, Kurdistan, Iraq

Dr. Valeriu Moldoveanu, National Institute of Materials Physics, Romania

Dr. Vram Mughnetsyan, Yerevan State University, Armenia

Dr. Chi-Shung Tang, National United University, Taiwan