Instituto de Ciencia de Materiales de Madrid
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Spin correlations in spin blockade

Rafael Sánchez, Sigmund Kohler, and Gloria Platero
New J. Phys. 10, 115013 (2008)

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.
arXiv:0809.1368 [cond-mat]

[ICMM-CSIC] [Condensed Matter Theory]
last modified: 15.3.2024 by Sigmund Kohler