CALCULATION OF THE CRITICAL-CURRENT OF A JOSEPHSON LATTICE TAKING INTO ACCOUNT CORRELATIONS OF PHASES AT ADJACENT PINNING CENTERS

A method for calculating the critical current of a Josephson lattice i s proposed. The boundary conditions and the correlations of phases at adjacent pinning centers are taken correctly into account. Restriction s are defined on the admissible values of magnetic field and geometric al dimensions of the lattice, at which the current flowing across each contact is close to its maximum. In this situation a general expressi on for the critical current of an arbitrary lattice is obtained. The s pecial cases of a one-dimensional chain of junctions, of square, of re ctangular and of textured lattices are considered.