Torsion-induced persistent current in a twisted quantum ring

Abstract

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.

9 pages, 3 figures

References in corpus (4)

• Persistent currents in normal metal rings
• Quantum mechanics on curved 2D systems with electric and magnetic fields
• Tuning the electrical resistivity of semiconductor thin films by nanoscale corrugation
• Curvature effects on surface electron states in ballistic nanostructures

Cited by in corpus (7)

• Buckling of Carbon Nanotubes: A State of the Art Review
• Diverse corrugation pattern in radially shrinking carbon nanotubes
• Geometric effects resulting from square and circular confinements for a particle constrained to a space curve
• Anomalous phase shift in a twisted quantum loop
• Coherent electron transport in a helical nanotube
• Persistent current in quantum torus knots
• Flux-free conductance modulation in a helical Aharonov-Bohm interferometer