Coherent interaction of an electromagnetic field with a medium of two-level particles and with a superconducting current in a Josephson structure

The propagation of electromagnetic pulses in Josephson structures is investigated theoretically. An analogy with interaction of light pulses with a twolevel medium is traced. Under certain conditions the propagation of electromagnetic radiation in a two-level medium and in a Josephson structure is described by the same wave equation.Lebedev Physics Institute, Academy of Sciences of the USSR, Moscwow. Translated from Preprint No. 233 of the Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow, 1938.