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T Kreibich

Publications and source records attributed to T Kreibich.

2 recordsLinked to original sources
PubMed2001

Even-harmonic generation due to beyond-Born-Oppenheimer dynamics.

We calculate the harmonic spectrum generated by a model HD molecule in a strong laser pulse. The unequal nuclear masses lead to the emission of even harmonics, i.e., photon frequencies which are even multiples of the laser frequency. The effect does not occur within the Born-Oppenheimer approximation. In the high-frequency region, the even harmonics are almost of the same order of magnitude as the odd ones.

Journal Article↗
PubMed2001

Multicomponent density-functional theory for electrons and nuclei.

A multicomponent density-functional theory is developed for the combined system of electrons and nuclei. We construct approximate functionals for the electron-nuclear correlation energy and illustrate the theory by explicit calculations for the H+2 molecular ion.

Journal Article↗