Aharonov-Bohm effect for pedestrian
J. Planelles, J. I. Climente, J. L. Movilla
Abstract
When a magnetic field pierces a multiple-connected quantum system, the corresponding wavefunction is altered although no net Lorentz force acts upon its carriers. This is the so called Aharonov-Bohm effect. The most simple multiply-connected quantum system is a quantum ring QR. Nowadays it is possible to obtain QRs in the nanoscopic range providing spectroscopic data vs. and applied external magnetic field. We describe here the most significant quantum effects induced by the magnetic field in a QR by means of simple quantum mechanical models.
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