Microscopic formulation for a Josephson array

Research output: Contribution to journalArticle

Abstract

The theory for an array of Josephson coupled superconductors is formulated in terms of temperature-ordered Feynman diagrams. The individual grains have an unperturbed ground state with a fixed number of electrons rather than a fixed phase. The formulation is illustrated by calculating the free energy. With relevant approximations this justifies the frequently used planar rotator model and the Giovannini-Weiss form for the free energy.

Original languageEnglish (US)
Article number021
Pages (from-to)1923-1930
Number of pages8
JournalJournal of Physics F: Metal Physics
Volume14
Issue number8
DOIs
StatePublished - 1984
Externally publishedYes

Fingerprint

Free energy
free energy
formulations
Feynman diagrams
Ground state
Superconducting materials
ground state
Electrons
approximation
electrons
Temperature
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Metals and Alloys

Cite this

Microscopic formulation for a Josephson array. / Barnes, Stewart.

In: Journal of Physics F: Metal Physics, Vol. 14, No. 8, 021, 1984, p. 1923-1930.

Research output: Contribution to journalArticle

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