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Spin-Forster transfer in optically excited quantum dots

Alexander O. Govorov
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Abstract

The mechanisms of energy and spin transfer in quantum dot pairs coupled via the Coulomb interaction are studied. Exciton transfer can be resonant or phonon-assisted. In both cases, the transfer rates strongly depend on the resonance conditions. The spin selection rules in the transfer process come from the exchange and spin-orbit interactions. The character of energy dissipation in spin transfer is different than that in the traditional spin currents. The spin-dependent photon cross-correlation functions reflect the exciton transfer process. In addition, a mathematical method to calculate Förster transfer in crystalline nanostructures beyond the dipole-dipole approximation is described.

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Alexander O. Govorov. 2005-03-29. Spin-Forster transfer in optically excited quantum dots. https://doi.org/10.1103/physrevb.71.155323

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