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

• 来源期刊: 理论物理通讯（英文版）
• 年，卷（期）: 2008,（3）
• 页码范围: 767-770
• 页数: 4页
• 语种: 英文

摘要

We investigate transport through a perfect quantum wire with a side-coupled quantum dot under an ac find. Time-averaged complex conductance is formulated by using the nonequilibrium Green function (NGF) method. We find that the electron-photon interaction together with the quantum interference of Nectron wave function can lead to anti-resonance in the conductance, which is then useful for tuning coherence and phases of Nectrons. Meanwhile, we study the temperature dependence of the conductance. Interestingly, a peak-structure can be developed at the Fano resonance levels with increasing temperatures.