Quantum fluctuations and dissipation in superconducting granular films

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


We derive a quantum Ginzburg-Landau theory for the onset of superconductivity in two dimensional arrays of Josephson junctions which are shunted by ohmic resistors. The corresponding mean field phase diagram shows that the system is superconducting at zero temperature and arbitrary small Josephson coupling if the normal state resistance is smaller than qRQ 4 with RQ = h 4e2 and q the average number of nearest neighbors. We study the suppression of quantum effects due to dissipation in the critical behavior and in the fluctuation induced diamagnetism.

Original languageEnglish
Pages (from-to)285-288
Number of pages4
JournalSolid State Communications
Issue number4
StatePublished - Apr 1987


Dive into the research topics of 'Quantum fluctuations and dissipation in superconducting granular films'. Together they form a unique fingerprint.

Cite this