Soliton and ratchet motions in helices
The most simple and straightforward generalization of the standard one-dimensional molecular chain with nearest-neighbour interactions to three dimensions is shown to be a helix backbone with three types of intermolecular interactions, the chain with secondary structure (e.g., α -helix in biology)....
Збережено в:
| Дата: | 1999 |
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| Автори: | , , , |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
1999
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120378 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Soliton and ratchet motions in helices / A.V. Zolotaryuk, P.L. Christiansen, B. Norde, A.V. Savin // Condensed Matter Physics. — 1999. — Т. 2, № 2(18). — С. 293-302. — Бібліогр.: 19 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The most simple and straightforward generalization of the standard one-dimensional molecular chain with nearest-neighbour interactions to three
dimensions is shown to be a helix backbone with three types of intermolecular interactions, the chain with secondary structure (e.g., α -helix in biology). The set of coupled nonlinear field equations with respect to the longitudinal and transverse displacements of the chain molecules is derived and
stable non-topological three-component soliton solutions are found numerically. These solutions describe supersonic pulses of longitudinal compression accompanied by a localized transverse bulge and a localized torsional
stretching of the helix backbone. Asymmetry caused by helicity of the backbone is shown to rectify zero-mean oscillating or fluctuating motions on a
simple experimental mechanical model. |
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