期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 16, 期 24, 页码 4303-4314出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/16/24/012
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We derive the quantum rate equations for an Aharonov-Bohm interferometer with two vertically coupled quantum dots embedded in each of two arms by means of the nonequilibrium Green function in the sequential tunnelling regime. Based on these equations, we investigate time-dependent resonant tunnelling under a small amplitude irradiation and find that the resonant photon-assisted tunnelling peaks in photocurrent demonstrate a combination behaviour of Fano and Lorentzian resonances due to the interference effect between the two pathways in this parallel configuration, which is controllable by threading the magnetic flux inside this device.
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