Phase oscillations between two superconducting condensates in cuprate superconductors
arXiv:cond-mat/9705129 · doi:10.1016/S0375-9601(97)00704-4
Abstract
Implications of the small Fermi surface are discussed. We demonstrate that superconductivity in this system can be described in terms of two coupled condensates. The two condensates result in a collective excitation corresponding to the relative phase oscillation - a phason. We discuss the possibility of searching for this collective excitation in the dynamic resistance of the SQUID.
LaTeX 12 pages and 1 ps figure