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Abstract By applying the nonequilibrium Green's function technique, the photon-assisted transport through an Aharonov–Bohm ring with a side-coupled double quantum dots is analyzed. In the presence of the time-dependent field,… Click to show full abstract
Abstract By applying the nonequilibrium Green's function technique, the photon-assisted transport through an Aharonov–Bohm ring with a side-coupled double quantum dots is analyzed. In the presence of the time-dependent field, due to influence of photon-assisted tunneling, the total conductance shows photonic side-bands, the width of the main resonant peak decreases, the positions of the antiresonance change to photon-assisted resonance, at the same time, the other narrow antiresonance appear on both sides of the photon-assisted resonance, the total conductance and the spin polarization are greatly affected by the amplitude and frequency of the ac field.
Journal Title: Physica E: Low-dimensional Systems and Nanostructures
Year Published: 2019
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