Klavs Hansen has joined the Department on a sabbatical leave from the Department of Physics, University of Gothenburg. He will work with Steen Brøndsted and Lars H. Andersen on biomolecules and clusters, and with Michael Drewsen on Coulomb crystals, with thermal processes as the common theme. KH did his PhD work at the Niels Bohr Institute on the electronic shell structure of metal clusters and has since studied fullerenes and other clusters. He is the author of the book “Statistical Physics of Nanoparticles in the Gas Phase” (Springer 2013). Apart from Sweden, he has worked in the USA, Germany and Finland. His sabbatical is funded by the University of Gothenburg and AU’s Forskningsfond.