20 research outputs found
Non-adiabatic charge pump: an exact solution
Get PDFWe derived a general and exact expression of current for quantum parametric
charge pumps in the non-adiabatic regime at finite pumping frequency and finite
driving amplitude. The non-perturbative theory predicts a remarkable plateau
structure in the pumped current due to multi-photon assisted processes in a
double-barrier quantum well pump involving only a {\it single} pumping
potential. It also predicts a current reversal as the resonant level of the
pump crosses the Fermi energy of the leads
Research on Computer Network Security Problems and Protective Measures under the Background of Big Data
No full textVariable slipâfrequency strategy for reducing nonâequal deviations output by paralleled singleâsided linear induction motors
No full textBlow-up phenomena and lifespan for a quasi-linear pseudo-parabolic equation at arbitrary initial energy level
No full textComparative study on active soil organic matter in Chinese fir plantation and native broad-leaved forest in subtropical China
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Jurassic granitic magmatism in the lesser Xingâan-Zhangguangcai ranges of NE China: the Dongâan example
No full textMicrobial biomass in subtropical forest soils: effect of conversion of natural secondary broad-leaved forest to Cunninghamia lanceolata plantation
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