THE DYNAMICAL RESPONSE OF A 3-JUNCTION NETWORK .1. PHASE VARIABLES

The phase diagram of a triangular network of overdamped Josephson Junc tions driven by independent current drives is studied through simulati ons and analysis. We delineate regions of parameter space correspondin g to different dynamical behaviour viz. steady, periodic and quasi-per iodic. The steady-state boundary turns out to be the critical line on which the periodic tongues converge. We find the equation of this line and analyse the critical behaviour by making connection with the circ le map. The correlation dimension of the set complementary to the peri odic tongues on the critical line is also measured.