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arXiv · 0910.2662

Determining the electronic triplet-singlet transition probability in double quantum dots: Analogy with the double slit experiment

Fernando Domínguez·Gloria Platero
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Abstract

We apply an elementary measurement scheme to calculate the electronic triplet-singlet transition mediated by hyperfine interaction in a double quantum dot. We show how the local character of the hyperfine interaction and the nuclear back-action process (flip-flop) are crucial to cancel destructive interferences of the triplet-singlet transition probability. It is precisely this cancellation which differentiates the hyperfine interaction from an anisotropic magnetic field which mixes the triplet and the singlet eigenstates.

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Fernando Domínguez, Gloria Platero. 2009-10-14. Determining the electronic triplet-singlet transition probability in double quantum dots: Analogy with the double slit experiment. https://doi.org/10.1103/physrevb.80.201301

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