The Use of Quantum Dots as Highly Sensitive Switchs Based on Singlet-Triplet Transition and Symmetry Constraint
Abstract
Based on symmetry constraint that leads to the appearance of nodes in the wave functions of 3-electron systems at regular triangle configurations, it was found that, if the parameters of confinement are skillfully given and if a magnetic field is tuned around the critical point of the singlet-triplet transition, a 2-electron quantum dot can be used as a highly sensitive switch for single-electron transport.
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