dorsal/arxiv
View SchemaLow-energy quadrupole modes in deformed clusters
| Authors | V. O. Nesterenko, W. Kleinig, P. -G. Reinhard, D. S. Dolci |
|---|---|
| Categories | |
| ArXiv ID | physics/0308004 |
| URL | https://arxiv.org/abs/physics/0308004 |
Abstract
Properties of low-energy (infra-red) quadrupole modes (LEQM) of multipolarity $+AFw-lambda+AFw-mu =$20, 21 and 22 in deformed sodium clusters are studied within the Kohn-Sham LDA RPA approach. Possible manifestations of LEQM in stimulated Raman adiabatic passage (STIRAP) reaction are discussed. It is shown that, in free light clusters, where the low-energy spectrum is delute, LEQM can be unambiguously identified as particular electron-hole pairs. This gives a chance to reconstruct the mean field level scheme near the Fermi surface. Moreover, due to the connection with electric $+AFw-lambda+AFw-mu =$21 mode, the scissors mode can be detected. In heavy (supported) oblate clusters, LEQM are in general rather involved. Nevertheless, some interesting $+AFw-lambda+AFw-mu =$21 and 22 structures determined by specific deformation effects can be resolved. The origin of the structures is discussed in detail.
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"abstract": "Properties of low-energy (infra-red) quadrupole modes (LEQM) of multipolarity\n$+AFw-lambda+AFw-mu =$20, 21 and 22 in deformed sodium clusters are studied\nwithin the Kohn-Sham LDA RPA approach. Possible manifestations of LEQM in\nstimulated Raman adiabatic passage (STIRAP) reaction are discussed. It is shown\nthat, in free light clusters, where the low-energy spectrum is delute, LEQM can\nbe unambiguously identified as particular electron-hole pairs. This gives a\nchance to reconstruct the mean field level scheme near the Fermi surface.\nMoreover, due to the connection with electric $+AFw-lambda+AFw-mu =$21 mode,\nthe scissors mode can be detected. In heavy (supported) oblate clusters, LEQM\nare in general rather involved. Nevertheless, some interesting\n$+AFw-lambda+AFw-mu =$21 and 22 structures determined by specific deformation\neffects can be resolved. The origin of the structures is discussed in detail.",
"arxiv_id": "physics/0308004",
"authors": [
"V. O. Nesterenko",
"W. Kleinig",
"P. -G. Reinhard",
"D. S. Dolci"
],
"categories": [
"physics.atm-clus"
],
"title": "Low-energy quadrupole modes in deformed clusters",
"url": "https://arxiv.org/abs/physics/0308004"
},
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