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Coordinator of the research area Nanoelectronics & Nanophotonics within NanoLund. 

Teaching 

ResearchMy research is presently divided into three parts.i) Optical spectroscopy of individual nanostructures such as quantum wires and quantum dots. I am mostly interested in the electronic structure of dots, which may be situated in wires. Nanowires can be textured along the wire axis as well as radially giving flexibility in the design of dots. Mostly photoluminescence is used although I prefer when a separate technique such as Raman scattering is performed on the same sample. Experiments are always compared with realistic calculations. ii) Realistic calculations of the properties of semiconductor nanostructures. A large project has been finished where the basic electronic structure of essentially all combinations of wire and dot heterostructures have been calculated. The geometry was either coreshell wires, segmented wires or coreshell dots. This project was in collaboration with Prof. Craig Pryor, University of Iowa. We cannot only calculate the gross bandstructure, we can also compute the detailed manybody states including up to six particles. iii) Development of new techniques in manybody theory using functional analysis. This project concerns the characterisation of the set of pair densities that can arise from a wavefunction. Let us call this set P(N), where N is the number of particles considered. It is unknown how to recognise if a function belongs to P(N) but I have found a strong and easily computable constraint recently, which is presently being written up. I have previously found that P(N) is a convex set and I have also determined its boundary. I am also trying to improve k.ptheory, once again together with Prof. Craig Pryor. 