  Electron transport through the T-shaped quantum-dot (QD) structure is
theoretically investigated, by considering a Majorana zero mode coupled to the
terminal QD. It is found that in the double-QD case, the presence of the
Majorana zero mode can efficiently dissolve the antiresonance point in the
conductance spectrum and induce a conductance peak to appear at the same energy
position whose value is equal to $e^2/2h$. This antiresonance-resonance change
will be suitable to detect the Majorana bound states. Next in the multi-QD
case, we observe that in the zero-bias limit, the conductances are always the
same as the double-QD result, independent of the parity of the QD number. We
believe that all these results can be helpful for understanding the properties
of Majorana bound states.
