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4 papers · 2 filters
Correlated two-electron transport: a principle for a novel charge pump
Qing-feng Sun, Hong Guo, Jian Wang
By considering a correlated two-electron transport process (TET) and using a diagrammatic analysis within the Keldysh nonequilibrium Green's function formalism, we discuss a novel…
A spin-cell for spin current
Qing-feng Sun, Hong Guo, Jian Wang
We propose and investigate a spin-cell device which provides the necessary spin-motive force to drive a spin current for future spintronic circuits. Our spin-cell have four basic c…
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…
Microwave-induced pi-junction transition in a superconductor / quantum-dot / superconductor structure
Yu Zhu, Wei Li, Tsung-han Lin +1
Using the nonequilibrium Green function, we show that microwave irradiation can reverse the supercurrent flowing through a superconductor / quantum-dot / superconductor structure.…