88 citations · 268 across the 12 of their papers we have counts for
12 papers
Journeys from Quantum Optics to Quantum Technology
Stephen M. Barnett, Almut Beige, Artur Ekert +17
Sir Peter Knight is a pioneer in quantum optics which has now grown to an important branch of modern physics to study the foundations and applications of quantum physics. He is lea…
The strong field approximation within a Faddeev-like formalism for laser-matter interactions
Yu. Popov, A. Galstyan, F. Mota-Furtado +2
We consider the interaction of atomic hydrogen with an intense laser field within the strong-field approximation. By using a Faddeev-like formalism, we introduce a new perturbative…
Modelling laser-atom interactions in the strong field regime
A. Galstyan, Yu. V. Popov, F. Mota-Furtado +5
We consider the ionisation of atomic hydrogen by a strong infrared field. We extend and study in more depth an existing semi-analytical model. Starting from the time-dependent Schr…
Sturmian bases for two-electron systems in hyperspherical coordinates
A. Abdouraman, Ana Laura Frappiccini, A. Hamido +5
We give a detailed account of an spectral approach for the calculation of energy spectra of two active electron atoms in a system of hyperspherical coordina…
Multi-resolution schemes for time scaled propagation of wave packets
Ana Laura Frapiccini, Aliou Hamido, Francisca Mota-Furtado +2
We present a detailed analysis of the time scaled coordinate approach and its implementation for solving the time-dependent Schrödinger equation describing the interaction of atoms…
Ionization and excitation of the excited hydrogen atom in strong circularly polarized laser fields
J. H. Bauer, Francisca Mota-Furtado, Patrick F. O'Mahony +2
In the recent work of Herath et al. [Phys. Rev. Lett. 109, 043004 (2012)] the first experimental observation of a dependence of strong-field ionization rate on the sign of the magn…
Explicit schemes for time propagating many-body wavefunctions
Ana Laura Frapiccini, Aliou Hamido, Sebastian Schröter +6
Accurate theoretical data on many time-dependent processes in atomic and molecular physics and in chemistry require the direct numerical solution of the time-dependent Schrödinger…
Effects of nonzero photon momentum in (γ,2e) processes
Alexander G. Galstyan, Ochbadrakh Chuluunbaatar, Yuri V. Popov +1
We study the effects of nonzero photon momentum on the triply-differential cross section for (γ,2e) processes. Due to the low value of the photon momentum, these effects are weak a…
Time scaling with efficient time-propagation techniques for atoms and molecules in pulsed radiation fields
Aliou Hamido, Johannes Eiglsperger, Javier Madroñero +4
We present an ab initio approach to solve the time-dependent Schrödinger equation to treat electron and photon impact multiple ionization of atoms or molecules. It combines the alr…
Spectral data for doubly excited states of helium with non-zero total angular momentum
Johannes Eiglsperger, Moritz Schönwetter, Bernard Piraux +1
A spectral approach is used to evaluate energies and widths for a wide range of singlet and triplet resonance states of helium. Data for total angular momentum is prese…
Representation of a complex Green function on a real basis: I. General Theory
Robin Shakeshaft, Bernard Piraux
When the Hamiltonian of a system is represented by a finite matrix, constructed from a discrete basis, the matrix representation of the resolvent covers only one branch. We show ho…
Two--Electron Atoms in Short Intense Laser Pulses
Armin Scrinzi, Bernard Piraux
We discuss a method of solving the time dependent Schrodinger equation for atoms with two active electrons in a strong laser field, which we used in a previous paper [A. Scrinzi an…