Bound states of envelope and Boussinesq solitons in anharmonic lattices
| Autor: | S F Mingaleev, Peter Leth Christiansen, Yu. B. Gaididei |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Physics
Anharmonicity Electron Condensed Matter Physics Atomic and Molecular Physics and Optics Davydov soliton Nonlinear Sciences::Exactly Solvable and Integrable Systems Quantum mechanics Lattice (order) Bound state Soliton Nonlinear Sciences::Pattern Formation and Solitons Mathematical Physics Quantum tunnelling Excitation |
| Zdroj: | Physica Scripta. 51:289-299 |
| ISSN: | 1402-4896 0031-8949 |
| DOI: | 10.1088/0031-8949/51/3/001 |
| Popis: | We investigate a soliton charge and energy transport in anharmonic molecular systems and show that at large enough anharmonicity parameter there are two kinds of envelope solitons, one of which is a Davydov soliton. It has the usual one-bell shape and may exist at any anharmonicity. The other kind has a two-bell shape. The two-bell shape is a bound state of Davydov and Boussinesq solitons. It is caused by excitation (electron) tunnelling in the effective lattice potential. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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