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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Sociedade Brasileira de Física
2006
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=46436544 |
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| _version_ | 1866812451726557184 |
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| author | H. M. Pastawski |
| author_facet | H. M. Pastawski |
| contents | Dynamical Phase Transition in Vibrational Surface Modes H. M. Pastawski H. L. Calvo Física, Astronomía y Matemáticas Dynamical phase transition Origin of frictional forces Vibrational localized states We consider the dynamical properties of a simple model of vibrational surface modes. We obtain the exactspectrum of surface excitations and discuss their dynamical features. In addition to the usually discussed localizedand oscillatory regimes we also find a second phase transition where the surface mode frequency becomespurely imaginary and describes an overdamped regime. Noticeably, this transition has an exact correspondenceto the oscillatory - overdamped transition of the standard oscillator with a frictional force proportional to velocity. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436544 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3B Vol.36 |
| format | Artículo científico |
| id | redalyc_46436544 |
| language | en |
| publishDate | 2006 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Dynamical Phase Transition in Vibrational Surface Modes H. M. Pastawski Física, Astronomía y Matemáticas Dynamical phase transition Origin of frictional forces Vibrational localized states Dynamical Phase Transition in Vibrational Surface Modes H. M. Pastawski H. L. Calvo Física, Astronomía y Matemáticas Dynamical phase transition Origin of frictional forces Vibrational localized states We consider the dynamical properties of a simple model of vibrational surface modes. We obtain the exactspectrum of surface excitations and discuss their dynamical features. In addition to the usually discussed localizedand oscillatory regimes we also find a second phase transition where the surface mode frequency becomespurely imaginary and describes an overdamped regime. Noticeably, this transition has an exact correspondenceto the oscillatory - overdamped transition of the standard oscillator with a frictional force proportional to velocity. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436544 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3B Vol.36 |
| title | Dynamical Phase Transition in Vibrational Surface Modes |
| topic | Física, Astronomía y Matemáticas Dynamical phase transition Origin of frictional forces Vibrational localized states |
| url | https://www.redalyc.org/articulo.oa?id=46436544 |