Local equilibria and state transfer of charged classical particles on a helix in an electric field
| Autor: | Alexandra V. Zampetaki, Peter Schmelcher, J. Plettenberg, J. Stockhofe |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
Atomic Physics (physics.atom-ph) Classical Physics (physics.class-ph) FOS: Physical sciences Physics - Classical Physics Fixed point 01 natural sciences Charged particle 010305 fluids & plasmas Physics - Atomic Physics Condensed Matter - Other Condensed Matter Classical mechanics Electric field 0103 physical sciences Helix Perpendicular Center of mass 010306 general physics Alpha helix Bifurcation Other Condensed Matter (cond-mat.other) |
| DOI: | 10.48550/arxiv.1609.02811 |
| Popis: | We explore the effects of a homogeneous external electric field on the static properties and dynamical behavior of two charged particles confined to a helix. In contrast to the field-free setup which provides a separation of the center-of-mass and relative motion, the existence of an external force perpendicular to the helix axis couples the center-of-mass to the relative degree of freedom leading to equilibria with a localized center of mass. By tuning the external field various fixed points are created and/or annihilated through different bifurcation scenarios. We provide a detailed analysis of these bifurcations based on which we demonstrate a robust state transfer between essentially arbitrary equilibrium configurations of the two charges that can be induced by making the external force time-dependent. Comment: 9 pages, 10 figures |
| Databáze: | OpenAIRE |
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