Preliminary studies on interference phenomena

Jerry B. Marion, Mark A. Heald

Richard B. Schulz

Emil Zolotoyabko

Laurent P. Lévy

A.W.S. Chandana, Withana P. Siripala, N. de Silva

D. N. Langenberg

Studies of several phenomena in superconducting Josephson tunnel junctions are reported, including the Riedel singularity, the Josephson plasma resonance, the quasiparticle-pair-interference current, and methods for improved coupling to external electromagnetic fields. Preliminary results on photon-induced nonequilibrium states in superconductors are described.