Full counting statistics for superconducting quantum point contacts: A discussion of the impact of Andreev reflection on charge transfer in superconducting nanostructures

Soller, Henning

ISBN 10: 3639478770 / ISBN 13: 9783639478778

Editore: AV Akademikerverlag, 2013

Riguardo questo articolo

pp. 200.

Codice articolo 26374183210

Dati bibliografici

• Titolo: Full counting statistics for superconducting quantum point contacts: A discussion of the impact of Andreev reflection on charge transfer in superconducting nanostructures
• Editore: AV Akademikerverlag
• Data di pubblicazione: 2013
• Lingua: Inglese
• ISBN 10: 3639478770
• ISBN 13: 9783639478778
• Rilegatura: Brossura
• Condizione: New

Descrizione articolo

Riassunto

The calculation of the full counting statistics (FCS) for quantum mechanical systems has attracted much attention in recent years. In this thesis the FCS for superconducting quantum point contacts have been calculated. Such quantum point contacts frequently occur in modern microelectronic devices, which exploit the special features of superconductors. The FCS for normal metal-superconductor and superconductor-superconductor contacts have been calculated using a generalized Keldysh formalism and the results have been compared to both experimental and theoretical results. The calculation of the FCS allows a precise understanding of the physical nature of charge transfer. Particularly doubled shot noise due to Andreev reflections was explained and the behaviour of the Josephson current for long measurement times was calculated. The obtained results are also valuable for the understanding of transport through quantum dots with superconducting leads.

L'autore

Henning Soller studied physics, mathematics and business administration at the University of Heidelberg, Fernuni Hagen, University of Kaiserslautern and University of Oregon. In 2012 he completed his PhD in physics at the University of Heidelberg.