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Quantum resonances of weakly linked, mesoscopic, superconducting dots

Research output: Contribution to journalLetter


Journal publication date18/04/1994
JournalJournal of Physics: Condensed Matter
Number of pages6
Original languageEnglish


We examine quantum properties of mesoscopic, Josephson coupled superconducting dots, in the limit that charging effects and quantization of energy levels within the dots are negligible, but quasi-particle transmission into the weak link is not. We demonstrate that quasi-particle resonances lead to current-phase relations, which deviate markedly from those of weak links connecting macroscopic superconductors. Results for the steady state DC Josephson current of two coupled dots are presented.