237 citations · 3k across the 111 of their papers we have counts for
8 papers · 1 filter
Small rare gas clusters in soft X-ray pulses
Ch. Siedschlag, J. M. Rost
We develop a microscopic model for the interaction of small rare gas clusters with soft X-ray radiation. It is shown that, while the overall charging of the clusters is rather low,…
Ionization of clusters in intense laser pulses through collective electron dynamics
Ulf Saalmann, Jan-Michael Rost
The motion of electrons and ions in medium-sized rare gas clusters (1000 atoms) exposed to intense laser pulses is studied microscopically by means of classical molecular dynamics…
On the role of shake-off in single-photon double ionization
T. Pattard, T. Schneider, J. M. Rost
The role of shake-off for double ionization of atoms by a single photon with finite energy has become the subject of debate. In this letter, we attempt to clarify the meaning of sh…
Ultrahigh harmonics from laser-assisted ion-atom collisions
Manfred Lein, Jan M. Rost
We present a theoretical analysis of high-order harmonic generation from ion-atom collisions in the presence of linearly polarized intense laser pulses. Photons with frequencies si…
A Levinson theorem for scattering from a Bose-Einstein condensate
J. Brand, I. Haering, J. -M. Rost
A relation between the number of bound collective excitations of an atomic Bose-Einstein condensate and the phase shift of elastically scattered atoms is derived. Within the Bogoli…
Optimal representations of quantum states by gaussians in phase space
Anatole Kenfack, Jan M Rost, Alfredo M Ozorio de Almeida
A two-step optimization is proposed to represent an arbitrary quantum state to a desired accuracy with the least number of gaussians in phase space. The Husimi distribution of the…
Quasiclassical double photoionization from the 2^{1,3}S excited states of helium including shakeoff
A. Emmanouilidou, T. Schneider, J. -M. Rost
We account for the different symmetries of the 2^{1,3}S helium excited states in a quasiclassical description of the knockout mechanism augmented by a quantum shakeoff contribution…
Plasma formation from ultracold Rydberg gases
T. Pohl, T. Pattard, J. M. Rost
Recent experiments have demonstrated the spontaneous evolution of a gas of ultracold Rydberg atoms into an expanding ultracold plasma, as well as the reverse process of plasma reco…