Ruprecht Karls Universität Heidelberg

From Few to Many

In our recent paper which was published in the current issue of Science 342, 457 (2013) (also available at arXiv:1307.3443), we study the formation of a Fermi sea one atom at a time. We investigate the crossover from few to many-body physics in a quasi one-dimensional system using a single impurity atom which interacts with an increasing number of majority atoms that are in a different state. We could show that for the investigated quantum impurity systems as few as four particles are enough to describe the system with the many-body theory.

More information can be found in the press release (in English or German) from the University of Heidelberg.

Furthermore, our publication is also discussed and explained for a broader audience, for instance in physicsworld and in a science blog.

EDV Abteilung