76 citations · 169 across the 9 of their papers we have counts for
9 papers
Photon-assisted Fano Resonance and Corresponding Shot-Noise in a Quantum Dot
Zhongshui Ma, Yu Zhu, Xin-Qi Li +2
We have studied the Fano resonance in photon-assisted transport in a quantum dot and calculated both the coherent current and spectral density of shot noise. It is predicted, for t…
ac Josephson effect in the resonant tunneling through mesoscopic superconducting junctions
Yu Zhu, Qing-feng Sun, Wei Li +2
We investigate ac Josephson effect in the resonant tunneling through mesoscopic superconducting junctions. In the presence of microwave irradiation, we show that the trajectory of…
Writing Spin in a Quantum Dot with Ferromagnetic and Superconducting Electrodes
Yu Zhu, Qing-feng Sun, Tsung-han Lin
We propose an efficient mechanism for the operation of writing spin in a quantum dot, which is an ideal candidate for qubit. The idea is based on the Andreev reflection induced spi…
Andreev-Fano Effect in a Hybrid Normal-Metal / Superconductor Interferometer
Yu Zhu, Qing-feng Sun, Tsung-han Lin
We report on a new type of Fano effect, named as Andreev-Fano effect, in a hybrid normal-metal / superconductor (N/S) interferometer embedded with a quantum dot. Compared with the…
Theory of Nonequilibrium Coherent Transport through an Interacting Mesoscopic Region Weakly Coupled to Electrodes
Yu Zhu, Tsung-han Lin, Qing-feng Sun
We develop a theory for the nonequilibrium coherent transport through a mesoscopic region, based on the nonequilibrium Green function technique. The theory requires the weak coupli…
Analytical result on the supercurrent through a superconductor/quantum-dot/superconductor junction
Wei Li, Yu Zhu, Tsung-han Lin
We present an analytical result for the supercurrent across a superconductor/quantum-dot/superconductor junction. By converting the current integration into a special contour integ…