Designing Digital Gates Using Soliton Transistor

A soliton transistor uses a train of soliton-like vortices inside long Josephson junctions to turn off the movement of another train of vortices. In this transistor, a long Josephson junction injects vortices into a reverse-biased Josephson fluxonic diode, corresponding to the ON state of the transistor. Injecting antivortices through a third long junction annihilates vortices before they could reach the Josephson fluxonic diode, This corresponds to the OFF state. Experimental results on the successful operation of this transistor as a NOT gate are provided, so design and simulation results of other basic digital gates based on this transistor is reported here.

Keywords:

Digital gate , Josephson fluxonic device , Josephson junction , Soliton transistor