Phase coherence in the Josephson-coupled stack of planar spin-charge separated condensates and the interlayer mechanism of high-Tc superconductivity -: art. no. 054504

A system of spin-charge separated stack of two-dimensional condensates interacting via the interplane Josephson coupling E-J(perpendicular to) is studied in the "phase only" quantum rotor representation as a model of layered high-T-c cuprates. Using de Gennes mapping onto S=1 pseudospin model the phase diagram is computed as a function of E-J(perpendicular to) which exhibits an intricate interplay between charge (e) and pair (2e) condensation. Experimental implications of the model pertaining to the condensation energy E-cond, the behavior of the ratio E-J(perpendicular to)/E-cond, and the flux quantization are discussed.