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Observation of the Efimov state of the helium trimer
Maksim Kunitski, Stefan Zeller, Jörg Voigtsberger +9
Quantum theory dictates that upon weakening the two-body interaction in a three-body system, an infinite number of three-body bound states of a huge spatial extent emerge just befo…
Quasi-molecular electron promotion beyond the 1s and 2p channels in slow collisions of He and He
L. Ph. H. Schmidt, M. S. Schöffler, C. Goihl +3
The electron emission pattern of transfer-ionization in collisions of He with He was investigated for impact velocities between 0.53 a.u. and 0.77 a.u. (7 keV/u - 15 keV/u)…
Agreement at last: an experimental and theoretical study on the single ionization of helium by fast proton impact
H. Gassert, O. Chuluunbaatar, M. Waitz +20
Even though ion/atom-collision is a mature field of atomic physics great discrepancies between experiment and theoretical calculations are still common. Here we present experimenta…
Dynamical characteristics of Rydberg electrons released by a weak electric field
Elias Diesen, Ulf Saalmann, Martin Richter +3
The dynamics of ultra-slow electrons in the combined potential of an ionic core and a static electric field is discussed. With state-of-the-art detection it is possible to create s…
Streaking temporal double slit interference by an orthogonal two-color laser field
Martin Richter, Maksim Kunitski, Markus Schöffler +5
We investigate electron momentum distributions from single ionization of Ar by two orthogonally polarized laser pulses of different color. The two-color scheme is used to experimen…