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Multiplexing single electron transistors for application in scalable solid-state quantum computing

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3 Author(s)
Conrad, V.I. ; Centre for Quantum Computer Technology, School of Physics, University of Melbourne, Victoria 3010, Australia ; Greentree, A.D. ; Hollenberg, L.C.L.

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Single electron transistors (SETs) are nanoscale electrometers of unprecedented sensitivity, and as such have been proposed as readout devices in a number of quantum computer architectures. The authors show that the functionality of a standard SET can be multiplexed so as to operate as both readout device and control gate for solid-state qubit systems based on charge localization and spin-charge transduction. Such multiplexing offers new possibilities for gate density reduction in nanoscale devices, and may therefore play a role in scalable quantum computer architectures.

Published in:

Applied Physics Letters  (Volume:90 ,  Issue: 4 )