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Variational RPA for the Mie resonance in jellium

G. F. Bertsch·C. Guet·K. Hagino
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Abstract

The surface plasmon in simple metal clusters is red-shifted from the Mie frequency, the energy shift being significantly larger than the usual spill-out correction. Here we develop a variational approach to the RPA collective excitations. Using a simple trial form, we obtain analytic expressions for the energy shift beyond the spill-out contribution. We find that the additional red shift is proportional to the spill-out correction and can have the same order of magnitude.

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G. F. Bertsch, C. Guet, K. Hagino. 2003-06-06. Variational RPA for the Mie resonance in jellium. https://arxiv.org/abs/physics/0306058

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