31 citations · 75 across the 3 of their papers we have counts for
8 papers
Effective Josephson dynamics in resonantly driven Bose-Einstein condensates
Martin Heimsoth, David Hochstuhl, Charles E. Creffield +2
We show that the orbital Josephson effect appears in a wide range of driven atomic Bose-Einstein condensed systems, including quantum ratchets, double wells and box potentials. We…
Photoionization of hydrogen atom by coherent intense high-frequency short laser pulses: Direct propagation of electron wave packets on large spatial grids
Philipp V. Demekhin, David Hochstuhl, Lorenz S. Cederbaum
The time-dependent Schrödinger equation for the hydrogen atom and its interaction with coherent intense high-frequency short laser pulses is solved numerically exactly by propagati…
Time-dependent restricted active space Configuration Interaction for the photoionization of many-electron atoms
David Hochstuhl, Michael Bonitz
We introduce the time-dependent restricted active space Configuration Interaction method to solve the time-dependent Schrödinger equation for many-electron atoms, and particularly…
Quantum Breathing Mode of Interacting Particles in a One-dimensional Harmonic Trap
Jan Willem Abraham, Karsten Balzer, David Hochstuhl +1
Extending our previous work, we explore the breathing mode---the [uniform] radial expansion and contraction of a spatially confined system. We study the breathing mode across the t…
Two-photon ionization of Helium studied with the multiconfigurational time-dependent Hartree-Fock method
D. Hochstuhl, M. Bonitz
The multiconfigurational time-dependent Hartree-Fock method (MCTDHF) is applied for simulations of the two-photon ionization of Helium. We present results for the single- and doubl…
Multiconfigurational time-dependent Hartree-Fock calculations for photoionization of one-dimensional Helium
D. Hochstuhl, S. Bauch, M. Bonitz
The multiconfigurational time-dependent Hartree-Fock equations are discussed and solved for a one-dimensional model of the Helium atom. Results for the ground state energy and two-…