Resonance Energy and Charge Pumping through Quantum SINIS Contacts
Abstract
We propose a mechanism of quantum pumping mediated by the spectral flow in a voltage-biased superconductor/insulator/normal-metal/insulator/superconductor quantum junction and realized via the sequential closing of the minigaps in the energy spectrum in resonance with the Josephson frequency. We show that the pumped dc current exhibits giant peaks at rational voltages.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 2006
- DOI:
- 10.1103/PhysRevLett.96.146802
- arXiv:
- arXiv:cond-mat/0512573
- Bibcode:
- 2006PhRvL..96n6802K
- Keywords:
-
- 73.23.-b;
- 74.45.+c;
- 74.78.Na;
- Electronic transport in mesoscopic systems;
- Proximity effects;
- Andreev effect;
- SN and SNS junctions;
- Mesoscopic and nanoscale systems;
- Condensed Matter - Superconductivity;
- Condensed Matter - Mesoscopic Systems and Quantum Hall Effect