Single-parameter nonadiabatic quantized charge pumping
By B. Kaestner, Vyacheslavs Kashcheyevs, S. Amakawa, L. Li, M. Blumenthal, T. Janssen, G. Hein, K. Pierz, T. Weimann, U. Siegner and 1 more. 2007
166 citations recorded by the source corpus.
Controlled charge pumping in an AlGaAs/GaAs gated nanowire by single-parameter modulation is experimentally and theoretically studied. Transfer of integral multiples of the elementary charge per modulation cycle is clearly demonstrated. A simple theoretical model shows that such a quantized current can be generated via loading and unloading of a dynamic quasibound state. It demonstrates that nonadiabatic blockade of unwanted tunnel events can obliterate the requirement of having at least two phase-shifted periodic signals to realize quantized pumping.
Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/1dad77619e86ef4fb9d6c0dd1d0b7d8674b7a87b
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In Atomic and Molecular Physics, and Optics
In Electrical and Electronic Engineering
- Matthias Troyer
- Antti Kemppinen
- Mikko Möttönen
- Dmitri V. Averin
- Y. Pashkin
- Jukka P. Pekola
- Olli-Pentti Saira
- V. Maisi
Citations in the corpus
- Topological Thouless pumping of ultracold fermions (2015, background): “Note that electron pumping in restricted nanodevices [8–11] is not topological since there the amount of the charge pumped per cycle instead depends on the area of the enclosed parameter space [25], which is the geometry but not the topology of the trajectory.”
- Single-electron current sources: towards a refined definition of ampere (2012, background): “Kaestner et al. (2008b) studied the robustness of the current plateaus as functions of all control parameters of the pump except the source–drain bias.”