Numerical simulation for digital applications of a coupled-SQUID gate with d.c.-biasing

Abstract

We present some numerical simulation results for a non-latching Josephson gate which is referred as a coupled-superconducting quantum interference device (SQUID) (C-SQUID) gate. TheC-SQUID gate can perform several logic functions by tuning the bias current to the single-junction-SQUID input-stage. The encoder and the decoder composed of C-SQUID BUFFER and NOR gates are successfully simulated. A modified C-SQUID gate which utilizes kinetic inductance of Josephson junctions is also presented.