dorsal/arxiv
View SchemaIrregular orbits generate higher harmonics
| Authors | Gerd van de Sand, Jan M Rost |
|---|---|
| Categories | |
| ArXiv ID | physics/9903036 |
| URL | https://arxiv.org/abs/physics/9903036 |
| DOI | 10.1103/PhysRevLett.83.524 |
| Journal | Phys. Rev. Lett. 83, 524 (1999) |
Abstract
The spectrum of higher harmonics in atoms calculated with a uniformized semiclassical propagator is presented and it is shown that higher harmonic generation is an interference phenomenon which can be described semiclassically. This can be concluded from the good agreement with the quantum spectrum. Moreover, the formation of a plateau in the spectrum is specifically due to the interference of irregular, time delayed, trajectories with regular orbits without a time-delay. This is proven by the absence of the plateau in an artificial semiclassical spectrum generated from a sample of trajectories from which the irregular trajectories (only a few percent) have been discarded.
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"abstract": "The spectrum of higher harmonics in atoms calculated with a uniformized\nsemiclassical propagator is presented and it is shown that higher harmonic\ngeneration is an interference phenomenon which can be described\nsemiclassically. This can be concluded from the good agreement with the quantum\nspectrum. Moreover, the formation of a plateau in the spectrum is specifically\ndue to the interference of irregular, time delayed, trajectories with regular\norbits without a time-delay. This is proven by the absence of the plateau in an\nartificial semiclassical spectrum generated from a sample of trajectories from\nwhich the irregular trajectories (only a few percent) have been discarded.",
"arxiv_id": "physics/9903036",
"authors": [
"Gerd van de Sand",
"Jan M Rost"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevLett.83.524",
"journal_ref": "Phys. Rev. Lett. 83, 524 (1999)",
"title": "Irregular orbits generate higher harmonics",
"url": "https://arxiv.org/abs/physics/9903036"
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