Complementary josephson-junction circuit: A fast flip-flop and logic gate

A logic circuit with Josephson junctions has been developed that operates as logic gate or as a flip-flop. Despite the latching-type characteristic of the Josephson tunnel junction, the complementary logic circuit is nonlatching. The test circuit has a power dissipation of 16-4 μW and a signal risetime of approximately 60 ps has been measured. © 1975, The Institution of Electrical Engineers. All rights reserved.