Influence of surface electronic structure on the Casimir force |
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Authors: | L. Maru&scaron i?,Marijan &Scaron unji? |
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Affiliation: | a Maritime Department, University of Zadar, M. Pavlinovi?a b.b., HR-23000 Zadar, Croatiab Donostia International Physics Center (DIPC), P. Manuel de Lardizabal, 20018 San Sebastian, Basque Country, Spainc Department of Physics, University of Zagreb, Bijeni?ka 32, HR-10000 Zagreb, Croatiad Departamento de Fisica de Materiales and Centro Mixto CSIC-UPV/EHU, Facultad de Ciencias Quimicas, Universidad del Pais Vasco UPV/EHU, Apto. 1072, 20080 San Sebastian, Basque Country, Spain |
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Abstract: | Recent nonlocal microscopic theory of Casimir force which expresses the interaction energy between two metallic slabs in terms of surface polariton propagators calculated from diamagnetic and paramagnetic current-current response functions, sensitive to details of the surface electron density profiles and single-particle excitations on the surfaces, is used here to calculate various contributions to the Casimir energies for a silver film described by two different models. Current-current response functions are constructed from energy levels and wave functions obtained in two different models: jellium and Chulkov one-dimensional model potential, and the results are compared with the local plasmon model results. The results show how the details of such surface electronic structure modify Casimir force. |
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Keywords: | A. Metals A. Thin films D. Electron-electron interaction D. Optical properties |
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