Zobrazeno 1 - 10
of 933
pro vyhledávání: '"Bartsch T"'
Autor:
Philippen, S., Hanert, A., Schönfeld, R., Granert, O., Yilmaz, R., Jensen-Kondering, U., Splittgerber, M., Moliadze, V., Siniatchkin, M., Berg, D., Bartsch, T.
Publikováno v:
In Clinical Neurophysiology January 2024 157:48-60
Autor:
Bartsch, T., Wolschin, G.
Publikováno v:
Annals Phys. 400, 21 (2019)
The time evolution of a finite fermion system towards statistical equilibrium is investigated using analytical solutions of a nonlinear partial differential equation that had been derived earlier from the Boltzmann collision term. The solutions of th
Externí odkaz:
http://arxiv.org/abs/1806.04044
Publikováno v:
Phys. Rev. Lett. 97, 104101 (2006)
We establish a hierarchical ordering of periodic orbits in a strongly coupled multidimensional Hamiltonian system. Phase space structures can be reconstructed quantitatively from the knowledge of periodic orbits alone. We illustrate our findings for
Externí odkaz:
http://arxiv.org/abs/nlin/0607060
Autor:
Bartsch, T., Uzer, T.
Publikováno v:
J. Phys. B 38, S241 (2005)
Quasi-static models of barrier suppression have played a major role in our understanding of the ionization of atoms and molecules in strong laser fields. Despite their success, in the case of diatomic molecules these studies have so far been restrict
Externí odkaz:
http://arxiv.org/abs/physics/0410078
Publikováno v:
J. Phys. B 38, S219 - S239 (2005)
With increasing energy the diamagnetic hydrogen atom undergoes a transition from regular to chaotic classical dynamics, and the closed orbits pass through various cascades of bifurcations. Closed orbit theory allows for the semiclassical calculation
Externí odkaz:
http://arxiv.org/abs/nlin/0407028
Publikováno v:
Eur. Phys. J. 25, 129 (2003)
Semiclassical periodic-orbit theory and closed-orbit theory represent a quantum spectrum as a superposition of contributions from individual classical orbits. Close to a bifurcation, these contributions diverge and have to be replaced with a uniform
Externí odkaz:
http://arxiv.org/abs/nlin/0302047
Autor:
Bartsch, T.
Publikováno v:
J. Phys. A 36, 6963 (2003)
The Kustaanheimo-Stiefel (KS) transformation maps the non-linear and singular equations of motion of the three-dimensional Kepler problem to the linear and regular equations of a four-dimensional harmonic oscillator. It is used extensively in studies
Externí odkaz:
http://arxiv.org/abs/physics/0301017
Publikováno v:
J. Phys. B 36, 1231 (2003)
Closed-orbit theory provides a general approach to the semiclassical description of photo-absorption spectra of arbitrary atoms in external fields, the simplest of which is the hydrogen atom in an electric field. Yet, despite its apparent simplicity,
Externí odkaz:
http://arxiv.org/abs/nlin/0212046
Publikováno v:
Phys. Rev. A 67, 063411 (2003)
The S-matrix theory formulation of closed-orbit theory recently proposed by Granger and Greene is extended to atoms in crossed electric and magnetic fields. We then present a semiclassical quantization of the hydrogen atom in crossed fields, which su
Externí odkaz:
http://arxiv.org/abs/nlin/0212017