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Quantum Interference Effects in an Aharonov-Bohm Ring with a Gate
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We have exactly treated the problem of the multichannel electrostatic Aharonov-Bohm effect in a ring structure with a voltage-controlling gate. We have found that, at zero temperature, the conductance oscillation patterns are complex because of contributions from individual channels. However, as the temperature is raised, the oscillations originated from the lower channels quickly vanish, and the overall conductance is almost completely governed by the topmost channel only, thereby making the situation very similar to the single-channel case in characteristics.
Title: Quantum Interference Effects in an Aharonov-Bohm Ring with a Gate
Description:
We have exactly treated the problem of the multichannel electrostatic Aharonov-Bohm effect in a ring structure with a voltage-controlling gate.
We have found that, at zero temperature, the conductance oscillation patterns are complex because of contributions from individual channels.
However, as the temperature is raised, the oscillations originated from the lower channels quickly vanish, and the overall conductance is almost completely governed by the topmost channel only, thereby making the situation very similar to the single-channel case in characteristics.
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