Analysis of the Bloch oscillating transistor

The Bloch-oscillating transistor (BOT) is a device where coherent Cooper-pair current in mesoscopic Josephson junctions can be controlled with single-electron tunneling from the base-electrode. We show computational results on the single-junction BOT (sj BOT). Also the double-junction BOT (dj BOT) is introduced. An approximate formula of the device noise temperature is also presented.