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 language | English (US) |
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Article number | 021 |
Pages (from-to) | 1923-1930 |
Number of pages | 8 |
Journal | Journal of Physics F: Metal Physics |
Volume | 14 |
Issue number | 8 |
DOIs | |
State | Published - Dec 1 1984 |
Externally published | Yes |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy (miscellaneous)
- Metals and Alloys