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Instituto de Ciencia de Materiales de Madrid |
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| Condensed Matter Theory | |||||
| Sigmund Kohler | home | cv | research | publications | ||||
Spin correlations in spin blockadeRafael Sánchez, Sigmund Kohler, and Gloria PlateroNew 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: 18.11.2024 by
Sigmund Kohler