Phase transition and persistent current via excitonic transport in coupled Josephson necklaces

摘要: Abstract We study two necklaces of Josephson junctions, coupled capacitively with each other, in the presence a magnetic field and gate charge induced by external sources. At zero temperature system is mapped onto two-dimensional classical Coulomb gas spatially anisotropic interactions, controlled relative coupling capacitance. Such anisotropy, related action excitonic particle–hole pairs, found to suppress quantum fluctuations help establish superconductivity, similarly charge. The persistent current generated due observed increase increment side superconducting phase becomes more prominent as transition point approached, which manifests significant role pairs system.