FLUX DISTRIBUTION AND CRITICAL CURRENTS IN A ONE-DIMENSIONAL ROW OF AJOSEPHSON-JUNCTION SQUARE LATTICE

We have numerically investigated the static properties of one-dimensio nal arrays of Josephson junctions connected in a square lattice contai ning a Josephson junction in each branch, accounting for self-field ef fects by means of self-inductances only. The static distribution of a single flux quantum and the critical current versus external magnetic field are calculated for different values of the SQUID parameter B-L = 2 pi L(C0)/Phi(0) of elementary cells. The presence of junctions in t he horizontal branches significantly modifies the static properties, s o that the behavior is characterized by a larger effective SQUID param eter.