Pinned-to-sliding transition and structural crossovers for helically confined charges

Link:
Autor/in:
Erscheinungsjahr:
2017
Medientyp:
Text
Schlagworte:
  • Wavefronts
  • Aberrations
  • Diffractive optical
  • Angular Momentum
  • Gaussian Beams
  • Beams (Radiation)
  • Wavefronts
  • Aberrations
  • Diffractive optical
  • Angular Momentum
  • Gaussian Beams
  • Beams (Radiation)
Beschreibung:
  • We explore the nonequilibrium dissipative dynamics of a system of identical charged particles trapped on a closed helix. The particles are subject to an external force accelerating them along the underlying structure. The effective interactions between the charges induce a coupling of the center of mass to the relative motion which in turn gives rise to a pinned-to-sliding transition with increasing magnitude of the external force. In the sliding regime we observe an Ohmic behavior signified by a constant mobility. Within the same regime a structural transition of the helical particle chain takes place with increasing the helix radius leading to a global change of the crystalline arrangement. The resulting crystal is characterized by the existence of multiple defects whose number increases with the helix radius.
Lizenz:
  • info:eu-repo/semantics/restrictedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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Quelldatensatz
oai:www.edit.fis.uni-hamburg.de:publications/08540ec5-d829-47ca-abdc-141380a1ad3d