Temperature Dependence of Abnormal Fano Resonance in Photon-Assisted Transport Through a Side-Coupled Quantum Dot

We investigate transport through a perfect quantum wire with aside-coupled quantum dot under an ac field. Time-averaged complexconductance is formulated by using the nonequilibrium Green function(NGF) method. We find that the electron-photon interaction togetherwith the quantum interference of electron wave function can lead toanti-resonance in the conductance, which is then useful for tuningcoherence and phases of electrons. Meanwhile, we study thetemperature dependence of the conductance. Interestingly, apeak-structure can be developed at the Fano resonance levels withincreasing temperatures.