Full counting statistics for superconducting quantum point contacts

Henning Soller

ISBN 10: 3639478770 / ISBN 13: 9783639478778

Editore: AV Akademikerverlag Okt 2013, 2013

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This item is printed on demand - it takes 3-4 days longer - Neuware -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. 200 pp. Englisch.

Codice articolo 9783639478778

Dati bibliografici

• Titolo: Full counting statistics for superconducting quantum point contacts
• Editore: AV Akademikerverlag Okt 2013
• Data di pubblicazione: 2013
• Lingua: Inglese
• ISBN 10: 3639478770
• ISBN 13: 9783639478778
• Rilegatura: Taschenbuch
• Condizione: Neu
• Dimensioni: 220 L x 150 A x 12 P (millimetri) 220 millimetri di larghezza per 150 millimetri di altezza per 12 millimetri di profondità
• Peso: 316 grammi

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.