5,199 research outputs found
Full counting-statistics in a single-electron transistor in the presence of nonequilibrium quantum fluctuations of charge
Using the Schwinger-Keldysh approach and the drone (Majorana) fermion
representation, we evaluate current distribution in a single-electron
transistor in a regime where a total tunnel resistance is small. Nonequilibrium
quantum fluctuations of charge induce a lifetime broadening of charge-state
level, as well as renormalization of system parameters. We find that the
lifetime broadening effect may suppress the probability of relatively large
current.Comment: 4 pages, 1 figur
Quantitative studies of nucleic acid in the cell by micro-spectrophotometry I. The critique and improvement of the microspectrophotometry
Some critical experiments have been carried out on the microspectrophotometry using the lymphocytes of a mouse, stained with Feulgen reaction, revealing that most reliable value can be attained by illuminating the material with a small spot-light and integrating the area surrounded by the extinction curve drawn by tracing along the diameter of the smeared and fixed cell.</p
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