Pan, H.; Xu, H.-Z.; Lü, R. - In: The European Physical Journal B - Condensed Matter and … 78 (2010) 4, pp. 475-479
With the help of the nonequilibrium Green's function method, the quantum pump in an Aharonov-Bohm interferometer with a quantum dot driven by an ac field are studied theoretically. The ac field applied to the quantum dot may give rise to a pumped charge current at zero-bias voltage in the...