Magnetic-flux-controlled giant Fano factor for the coherent tunneling   through a parallel double-quantum-dot
  We report our studies of zero-frequency shot noise in tunneling through a parallel-coupled quantum dot interferometer by employing number-resolved quantum rate equations. We show that the combination of quantum interference effect between two pathways and strong Coulomb repulsion could result in a giant Fano factor, which is controllable by tuning the enclosed magnetic flux. 
Bing Dong, X.L. Lei