Density of states of a Sierpinski gasket in two dimensions with anisotropic interactions
Autor: | M Hood, B. W. Southern |
---|---|
Rok vydání: | 1986 |
Předmět: | |
Zdroj: | Journal of Physics A: Mathematical and General. 19:2679-2684 |
ISSN: | 1361-6447 0305-4470 |
Popis: | The density of states of a quadratic Hamiltonian, with some anisotropy in the interactions, on a Sierpinski gasket in two dimensions is calculated. It is shown that the isotropic gasket is special in that the spectrum is composed of two distinct parts which correspond to localised molecular modes and hierarchical modes respectively. When anisotropy is added, the localised molecular modes disappear and only the hierarchical states remain. |
Databáze: | OpenAIRE |
Externí odkaz: |