Torsion-induced persistent current in a twisted quantum ring

Details Torsion-induced persistent current in a twisted quantum ring Torsion-induced persistent current in a twisted quantum ring

2009-04-21

arxiv.org/abs/0904.3149v2

J. Phys.: Condens. Matter 22 (2010) 075301

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 3 figures

Scientific paper

We describe the effects of geometric torsion on the coherent motion of electrons along a thin twisted quantum ring. The geometric torsion inherent in the quantum ring triggers a quantum phase shift in the electrons' eigenstates, thereby resulting in a torsion-induced persistent current that flows along the twisted quantum ring. The physical conditions required for detecting the current flow are discussed.

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