Correlated Counting of Single Electrons in a Nanowire Double Quantum Dot

Details Correlated Counting of Single Electrons in a Nanowire Double Quantum Dot Correlated Counting of Single Electrons in a Nanowire Double Quantum Dot

2008-12-10

arxiv.org/abs/0812.2008v1

New J. Phys. 11 (2009) 013005

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 4 figures; http://stacks.iop.org/1367-2630/11/013005

Scientific paper

10.1088/1367-2630/11/1/013005

We report on correlated real-time detection of individual electrons in an InAs nanowire double quantum dot. Two self-aligned quantum point contacts in an underlying two-dimensional electron gas material serve as highly sensitive charge detectors for the double quantum dot. Tunnel processes of individual electrons and all tunnel rates are determined by simultaneous measurements of the correlated signals of the quantum point contacts.

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