Waiting time distributions for the transport through a quantum-dot tunnel coupled to one normal and one superconducting lead
| Autor: | Michele Governale, Christina Pöltl, Leila Rajabi |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Waiting time
Physics Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics Condensed matter physics Oscillation Condensed Matter - Superconductivity FOS: Physical sciences General Physics and Astronomy Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Resonance (particle physics) Superconductivity (cond-mat.supr-con) Quantum dot Condensed Matter::Superconductivity Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Bound state Cooper pair Atomic physics |
| Zdroj: | Physical review letters. 111(6) |
| ISSN: | 1079-7114 |
| Popis: | We have studied the Waiting Time Distributions (WTDs) for sub-gap transport through a single-level quantum dot tunnel coupled to one normal and one superconducting lead. The WTDs reveal the internal dynamics of the system in particular the coherent transfer of Cooper pairs between the dot and the superconductor. The WTDs exhibit oscillations that can be directly associated to the coherent oscillation between the empty and doubly occupied dot. The oscillation frequency is equal to the energy splitting between the Andreev bound states. These effects are more pronounced when the empty state and double occupied state are in resonance. Comment: 6 pages and 4 figures (including supplementary information) |
| Databáze: | OpenAIRE |
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