Shot noise in a double-quantum-dot Aharonov-Bohm interferometer under the perturbation of ac fields H.-K. Zhao and L.-L. Zhao Eur. Phys. J. B, 79 4 (2011) 485-494 Published online: 21 February 2011 DOI: 10.1140/epjb/e2011-10731-0