Low-energy quadrupole modes in deformed clusters
| dc.creator | Nesterenko, V. O. | |
| dc.creator | Kleinig, W. | |
| dc.creator | Reinhard, P. -G. | |
| dc.creator | Dolci, D. S. | |
| dc.date | 2003-08-01 | |
| dc.date.accessioned | 2026-07-07T05:49:48Z | |
| dc.date.available | 2026-07-07T05:49:48Z | |
| dc.description | 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. | |
| dc.description | 12 pages, 6 figures | |
| dc.identifier | https://arxiv.org/abs/physics/0308004 | |
| dc.identifier | http://arxiv.org/abs/physics/0308004 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/85518 | |
| dc.subject | Atomic and Molecular Clusters | |
| dc.title | Low-energy quadrupole modes in deformed clusters | |
| dc.type | text |