Zobrazeno 1 - 10
of 217
pro vyhledávání: '"BAUCH, S."'
Publikováno v:
Phys. Rev. A 92, 063423 (2015)
We numerically study models of $\mathrm{H}_2$ and $\mathrm{LiH}$ molecules, aligned collinearly with the linear polarization of the external field, to elucidate the possible role of correlation in the enhanced-ionization phenomena. Correlation is con
Externí odkaz:
http://arxiv.org/abs/1508.01629
Akademický článek
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Autor:
Bauch, S., Bonitz, M.
Publikováno v:
Phys. Rev. A 85, 053416 (2012)
In a recent publication [B. Schuette, S. Bauch et al., accepted for publication in Phys. Rev. Lett. 2012] it was demonstrated both, experimentally and theoretically, that Auger electrons are subject to an energetic chirp if a three-body-interaction d
Externí odkaz:
http://arxiv.org/abs/1203.4704
Publikováno v:
Phys. Rev. A 82, 033427 (2010)
Using the finite-element discrete variable representation of the nonequilibrium Green's function (NEGF) we extend previous work [K.~Balzer et al., Phys. Rev. A \textbf{81}, 022510 (2010)] to nonequilibrium situations and compute---from the two-time S
Externí odkaz:
http://arxiv.org/abs/1008.4621
Publikováno v:
European Physics Letters 91, 53001 (2010)
The ionization dynamics of a two-electron atom in an attosecond XUV-infrared pump-probe experiment is simulated by solving the time-dependent two-electron Schr\"odinger equation. A dramatic change of the double ionization (DI) yield with variation of
Externí odkaz:
http://arxiv.org/abs/1005.1253
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-particle density as well as the absorption spectrum are presented and
Externí odkaz:
http://arxiv.org/abs/0911.0259
We propose and apply the finite-element discrete variable representation to express the nonequilibrium Green's function for strongly inhomogeneous quantum systems. This method is highly favorable against a general basis approach with regard to numeri
Externí odkaz:
http://arxiv.org/abs/0910.5458
Theoretical approaches to the photoionization of few-electron atoms are discussed. These include nonequilibrium Greens functions and wave function based approaches. In particular, the Multiconfiguration Time-Dependent Hartree-Fock method is discussed
Externí odkaz:
http://arxiv.org/abs/0909.1964
Autor:
Bauch, S., Bonitz, M.
Publikováno v:
Contrib. Plasma Phys. 49, 558-567 (2009)
Electrons colliding with spatially fixed ions in strong laser fields are investigated by solving the time-dependent Schr\"odinger equation. Considering first simple one-dimensional model systems, the mechanisms and energy spectra of fast electrons ar
Externí odkaz:
http://arxiv.org/abs/0904.4855
Publikováno v:
Phys. Rev. B 80 (2009) 054515
An analysis of the quantum breathing behavior of few-particle Coulomb systems in one- and two-dimensional harmonic traps is presented. We report the existence of \emph{two independent breathing modes} and present exact numerical results for two parti
Externí odkaz:
http://arxiv.org/abs/0903.1993