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Current noise and Coulomb effects in superconducting contacts

Galaktionov, A.V.; Zaikin, A.D.

We derive an effective action for contacts between superconducting terminals with arbitrary transmission distribution of conducting channels. In the case of normalsuperconducting (NS) contacts we evaluate interaction correction to Andreev conductance and demonstrate a close relation between Coulomb effects and shot noise in these systems. In the case of superconducting (SS) contacts we derive the electron-electron interaction correction to the Josephson current. At T = 0 both corrections are found to vanish for fully transparent NS and SS contacts indicating the absence of Coulomb effects in this limit.

Verlagsausgabe §
DOI: 10.5445/IR/120085388
Veröffentlicht am 24.05.2018
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2010
Sprache Englisch
Identifikator ISSN: 1742-6588, 1742-6596
KITopen-ID: 120085388
HGF-Programm 43.11.02 (POF II, LK 01) Electronic transport in nanostructures
Erschienen in Journal of physics / Conference Series
Verlag IOP Publishing
Band 248
Seiten 012029/1-8
Nachgewiesen in Dimensions
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