Seminar über die Physik der kondensierten Materie (SFB/TRR173 Spin+X und SFB/TR288 Kolloquium, TopDyn-Seminar)

Nov. 15, 2007 at 5 p.m. c.t. in Lorentz-Raum (05-127)

Univ-Prof. Dr. Jure Demsar
Univ.-Prof. Dr. Hans-Joachim Elmers
Univ.-Prof. Dr. Mathias Kläui
Univ.-Prof. Dr. Thomas Palberg

Coherence, decoherence and entanglement in molecular photoionization
Prof. Dr. Reinhard Dörner (Institut für Kernphysik, Universität Frankfurt)


The ejection of an electron from a homonuclear molecule like H2 closely reassambles the situation behind a double slit. The photoelectron wave emerges from either of the two indistinguishable molecular centers and leads to interference fringes in the angular distribution of the electron. We will discuss a first experiment where instead of one electron an electron pair is emitted from the two centers. We experimentally map the full 2 body wave funtion of this pair, unveiling all details of a two particle interference.
The talk will cover also several other examples of entangled 2 and 3 particle states created by the photoabsorption process at a molecule.