Due to the Fermi-Dirac statistics of electrons the temporal correlations of
tunneling events in a double barrier setup are typically negative. Here, we
investigate the shot noise behavior of a system of two capacitively coupled
quantum dot states by means of a Master equation model. In an asymmetric setup
positive correlations in the tunneling current can arise due to the bunching of
tunneling events. The underlying mechanism will be discussed in detail in terms
of the current-current correlation function and the frequency-dependent Fano
factor.Comment: HCIS 13 in Moden
