Abstract
To investigate Fano resonances in the system of quantum dots, the conduction spectra for the circuit containing a C60 is calculated in consideration of vibrational effects for some characteristic modes. The contribution of a referential path of an Aharonov-Bohm ring to structures in spectra is also studied. In mesoscopic systems, the Fano effect is mainly found for the AB ring system with a quantum dot. In addition, the broadening of the peak for each electronic level becomes significant by the inter-level coupling via the ungerade mode for the case where gerade and ungerade electronic levels are close to the other. On the other hand, we would like to stress that the referential path of the AB ring is not required to obtain the Fano patterns as for the breathing mode. We would like to emphasize that the interference between narrow peak and long tail of strong peak takes place in this molecule; The former plays the role of the discrete level, the latter the continuum state.
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