dorsal/arxiv
View SchemaInfrared electron modes in light deformed clusters
| Authors | V. O. Nesterenko, P. -G. Reinhard, W. Kleinig, D. S. Dolci |
|---|---|
| Categories | |
| ArXiv ID | physics/0405004 |
| URL | https://arxiv.org/abs/physics/0405004 |
| DOI | 10.1103/PhysRevA.70.023205 |
| Journal | Phys.Rev.A70:023205,2004 |
Abstract
Infrared quadrupole modes (IRQM) of the valence electrons in light deformed sodium clusters are studied by means of the time-dependent local-density approximation (TDLDA). IRQM are classified by angular momentum components $\lambda\mu =$20, 21 and 22 whose $\mu$ branches are separated by cluster deformation. In light clusters with a low spectral density, IRQM are unambiguously related to specific electron-hole excitations, thus giving access to the single-electron spectrum near the Fermi surface (HOMO-LUMO region). Most of IRQM are determined by cluster deformation and so can serve as a sensitive probe of the deformation effects in the mean field. The IRQM branch $\lambda\mu =$21 is coupled with the magnetic scissors mode, which gives a chance to detect the latter. We discuss two-photon processes, Raman scattering (RS), stimulated emission pumping (SEP), and stimulated adiabatic Raman passage (STIRAP), as the relevant tools to observe IRQM. A new method to detect the IRQM population in clusters is proposed.
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"abstract": "Infrared quadrupole modes (IRQM) of the valence electrons in light deformed\nsodium clusters are studied by means of the time-dependent local-density\napproximation (TDLDA). IRQM are classified by angular momentum components\n$\\lambda\\mu =$20, 21 and 22 whose $\\mu$ branches are separated by cluster\ndeformation. In light clusters with a low spectral density, IRQM are\nunambiguously related to specific electron-hole excitations, thus giving access\nto the single-electron spectrum near the Fermi surface (HOMO-LUMO region). Most\nof IRQM are determined by cluster deformation and so can serve as a sensitive\nprobe of the deformation effects in the mean field. The IRQM branch $\\lambda\\mu\n=$21 is coupled with the magnetic scissors mode, which gives a chance to detect\nthe latter. We discuss two-photon processes, Raman scattering (RS), stimulated\nemission pumping (SEP), and stimulated adiabatic Raman passage (STIRAP), as the\nrelevant tools to observe IRQM. A new method to detect the IRQM population in\nclusters is proposed.",
"arxiv_id": "physics/0405004",
"authors": [
"V. O. Nesterenko",
"P. -G. Reinhard",
"W. Kleinig",
"D. S. Dolci"
],
"categories": [
"physics.atm-clus",
"physics.optics"
],
"doi": "10.1103/PhysRevA.70.023205",
"journal_ref": "Phys.Rev.A70:023205,2004",
"title": "Infrared electron modes in light deformed clusters",
"url": "https://arxiv.org/abs/physics/0405004"
},
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