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AC current due to photon-assisted tunneling in driven mesoscopic systems

✍ Scribed by Kousuke Yakubo; Jun-ichiro Ohe

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
192 KB
Volume
18
Category
Article
ISSN
1386-9477

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✦ Synopsis

Photon-assisted AC transport through coherently driven mesoscopic systems has been studied by employing a transfer-matrix method. For a driven double-barrier system as a simple model of a quantum dot, we show that the AC current due to quantum interference between di erent sideband states depends on wavenumbers of electrons and exhibits sideband peaks. We also suggest that such AC currents can be observed in a driven mesoscopic ring which provides a novel type of photon-assisted tunneling.

πŸ“œ SIMILAR VOLUMES

Photon-assisted tunneling in ac driven d
Photon-assisted tunneling in ac driven double quantum dot spin pumps
✍ SΓ‘nchez, R. ;Platero, G. ;Aguado, R. ;Cota, E. πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 659 KB

## Abstract In this work, we study the effect of an applied ac gate voltage on the spin filtering and pumping properties of a lateral double quantum dot, in the Coulomb blockade and weak coupling regimes, considering not only the effect of the ac potential on the inter‐dot tunneling but also on the