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Quantum Faraday Effect in Double-Dot Aharonov-Bohm Ring

By Kicheon Kang

Abstract

We investigate Faraday's law of induction manifested in the quantum state of Aharonov-Bohm loops. In particular, we propose a flux-switching experiment for a double-dot AB ring to verify the phase shift induced by Faraday's law. We show that the induced {\em Faraday phase} is geometric and nontopological. Our study demonstrates that the relation between the local phases of a ring at different fluxes is not arbitrary but is instead determined by Faraday's inductive law, which is in strong contrast to the arbitrary local phase of an Aharonov-Bohm ring for a given flux.Comment: Submitted to Phys. Rev. Let

Topics: Condensed Matter - Mesoscale and Nanoscale Physics, Quantum Physics
Year: 2011
DOI identifier: 10.1209/0295-5075/99/17005
OAI identifier: oai:arXiv.org:1102.5261
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