Coherent transient effects in Josephson junctions. Formulation Academic Article uri icon


  • Coherent transient phenomena in superconducting tunnel junctions are investigated by means of a Gorkov-Nambu, Green's-function formulation, but without making the usual factorization. In this way we are led to and justify a pseudospin-angular-momentum formulation of junction dynamics. We find that for problems involving pair-current flow between weakly coupled superconductors the system can be conveniently represented by its position on a Bloch sphere in our pseudospin space. The magnitude of the Bloch vector is set by the total number of interacting Cooper pairs whereas its orientation is specified by two angles, and. The angle is the usual Josephson-pair phase, but the new angle enters our calculations for transient situations. A comparison is made between the present angular-momentum formulation and the phenomenological number-phase-angle theory. 1978 The American Physical Society.

published proceedings

  • Physical Review B

author list (cited authors)

  • Rogovin, D., Scully, M., & DiRienzo, A.

citation count

  • 14

complete list of authors

  • Rogovin, D||Scully, M||DiRienzo, A

publication date

  • October 1978