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Geometrical spin dephasing in quantum dots

Pablo San-Jose·Gergely Zarand·Alexander Shnirman·Gerd Schön
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Abstract

We study spin-orbit mediated relaxation and dephasing of electron spins in quantum dots. We show that higher order contributions provide a relaxation mechanism that dominates for low magnetic fields and is of geometrical origin. In the low-field limit relaxation is dominated by coupling to electron-hole excitations and possibly $1/f$ noise rather than phonons.

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Pablo San-Jose, Gergely Zarand, Alexander Shnirman, Gerd Schön. 2006-08-25. Geometrical spin dephasing in quantum dots. https://doi.org/10.1103/physrevlett.97.076803

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