Search for the in-phase flux flow mode in stacked Josephson junctions

Josephson vortex flux flow states in stacked Josephson junctions are investigated numerically. The aim of the work is to understand the mechanisms behind the formation of triangular (anti-phase) and square (in-phase) vortex lattices, and is motivated by recent experiments on layered BSCCO type high-Tc superconductors in a magnetic field. In order to keep the problem as simple as possible we consider in detail only the case with two junctions in the stack.