| Issue |
EPL
Volume 123, Number 2, July 2018
|
|
|---|---|---|
| Article Number | 23001 | |
| Number of page(s) | 6 | |
| Section | Atomic, Molecular and Optical Physics | |
| DOI | https://doi.org/10.1209/0295-5075/123/23001 | |
| Published online | 20 August 2018 | |
New family of potentials with analytical twiston-like solutions
UFCG - Universidade Federal de Campina Grande, Unidade Acadêmica de Física - Caixa Postal 10071, 58109-970, Campina Grande PB, Brazil
Received: 1 June 2018
Accepted: 20 July 2018
In this letter we present a new approach to find analytical twiston models. The effective two-field model was constructed by a non-trivial combination of two one-field systems. In such an approach we successfully build analytical models which are satisfied by a combination of two defect-like solutions, where one is responsible for twisting the molecular chain by 180°, while the other implies a longitudinal movement. Such a longitudinal movement can be fitted to have the size of the distance between adjacent molecular groups. The procedure works nicely and can be used to describe the dynamics of several other molecular chains.
PACS: 36.20.Fz – Constitution (chains and sequences) / 03.50.-z – Classical field theories / 45.20.Jj – Lagrangian and Hamiltonian mechanics
© EPLA, 2018
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