Voltage-tunable singlet-triplet transition in lateral quantum dots

Abstract

Results of calculations and high source-drain transport measurements are presented which demonstrate voltage-tunable entanglement of electron pairs in lateral quantum dots. At a fixed magnetic field, the application of a judiciously-chosen gate voltage alters the ground-state of an electron pair from an entagled spin singlet to a spin triplet.

8.2 double-column pages, 10 eps figures

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