Zobrazeno 1 - 10
of 346
pro vyhledávání: '"Furtado, F."'
We consider the interaction of atomic hydrogen, in its ground state, with an electromagnetic pulse whose duration is fixed in terms of the number of optical cycles. We study the probability of excitation of the atom in the static field limit i.e. for
Externí odkaz:
http://arxiv.org/abs/1711.11350
Autor:
Galstyan, A., Popov, Yu. V., Janssens, N., Mota-Furtado, F., O'Mahony, P. F., Decleva, P., Quadri, N., Piraux, B.
We present and discuss a new computationally inexpensive method to study, within the single active electron approximation, the interaction of a complex system with an intense ultrashort laser pulse. As a first application, we consider the one photon
Externí odkaz:
http://arxiv.org/abs/1703.05517
Autor:
Galstyan, A., Popov, Yu. V., Mota-Furtado, F., O'Mahony, P. F., Janssens, N., Jenkins, S. D., Chuluunbaatar, O., Piraux, B.
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 Schroedinger equation in momentum space and in the velocity gauge we subst
Externí odkaz:
http://arxiv.org/abs/1611.04300
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 series in the binding potential of the atom. As a first test of this
Externí odkaz:
http://arxiv.org/abs/1611.04304
Akademický článek
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Autor:
Abdouraman, A., Frappiccini, Ana Laura, Hamido, A., Mota-Furtado, F., O'Mahony, P. F., Mitnik, D., Gasaneo, G., Piraux, B.
We give a detailed account of an $\it{ab}$ $\it{initio}$ spectral approach for the calculation of energy spectra of two active electron atoms in a system of hyperspherical coordinates. In this system of coordinates, the Hamiltonian has the same struc
Externí odkaz:
http://arxiv.org/abs/1610.03758
Autor:
Galstyan, A., Chuluunbaatar, O., Hamido, A., Popov, Yu. V., Mota-Furtado, F., O'Mahony, P. F., Janssens, N., Catoire, F., Piraux, B.
Publikováno v:
Phys. Rev. A 93, 023422 (2016)
We consider the interaction of hydrogen-like atoms with a strong laser field and show that the strong field approximation and all its variants may be grouped into a set of families of approximation schemes. This is done by introducing an ansatz descr
Externí odkaz:
http://arxiv.org/abs/1512.00681
We compare the Kurganov-Tadmor (KT) two-dimensional second order semi-discrete central scheme in dimension by dimension formulation with a new two-dimensional approach introduced here and applied in numerical simulations for two-phase, two-dimensiona
Externí odkaz:
http://arxiv.org/abs/0803.4224
Autor:
Mota-Furtado, F., O'Mahony, P. F.
The photoionization spectrum of an atom in a magnetic field is calculated by combining R-matrix propagation with local adiabatic basis expansions. This approach considerably increases the speed and the energy range over which calculations can be perf
Externí odkaz:
http://arxiv.org/abs/0709.0275
Publikováno v:
In Journal of Computational and Applied Mathematics 1 March 2018 330:499-518