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arXiv · 0809.1368

Spin correlations in spin blockade

Rafael Sánchez·Sigmund Kohler·Gloria Platero
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Abstract

We investigate spin currents and spin-current correlations for double quantum dots in the spin blockade regime. By analysing the time evolution of the density matrix, we obtain the spin resolved currents and derive from a generating function an expression for the fluctuations and correlations. Both the charge current and the spin current turn out to be generally super-Poissonian. Moreover, we study the influence of ac fields acting upon the transported electrons. In particular, we focus on fields that cause spin rotation or photon-assisted tunnelling.

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Rafael Sánchez, Sigmund Kohler, Gloria Platero. 2008-11-21. Spin correlations in spin blockade. https://doi.org/10.1088/1367-2630%2F10%2F11%2F115013

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