{
  "id": "2206.14883",
  "version": "v1",
  "published": "2022-06-29T19:48:23.000Z",
  "updated": "2022-06-29T19:48:23.000Z",
  "title": "Strongly enhanced dynamics of a charged Rouse dimer by an external magnetic field",
  "authors": [
    "Rushikesh Shinde",
    "Jens Uwe Sommer",
    "Hartmut Löwen",
    "Abhinav Sharma"
  ],
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.soft"
  ],
  "abstract": "While the dynamics of dimers and polymer chains in a viscous solvent is well understood within the celebrated Rouse model, the effect of an external magnetic field on the dynamics of a charged chain is much less understood. Here we generalize the Rouse model for a charged dimer to include the effect of an external magnetic field. Our analytically solvable model allows a fundamental insight into the magneto-generated dynamics of the dimer in the overdamped limit as induced by the Lorentz-force. Surprisingly, for a dimer of oppositely charged particles, we find an enormous enhancement of the dynamics of the dimer center which exhibits even a transient superballistic behavior. This is highly unusual in an overdamped system for there is neither inertia nor any internal or external driving. We attribute this to a significant translation and rotation coupling due to the Lorentz force. We also find that magnetic field reduces the mobility of a dimer along its orientation and its effective rotational diffusion coefficient. In principle, our predictions can be tested by experiments with colloidal particles and complex plasmas.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-06-29T19:48:23.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "external magnetic field",
      "charged rouse dimer",
      "strongly enhanced dynamics",
      "transient superballistic behavior",
      "magnetic field reduces"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}