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@ARTICLE{Xue:1023043,
author = {Xue, Ran and Beer, Max and Seidler, Inga and Humpohl, Simon
and Tu, Jhih-Sian and Trellenkamp, Stefan and Struck, Tom
and Bluhm, Hendrik and Schreiber, Lars R.},
title = {{S}i/{S}i{G}e {Q}u{B}us for single electron
information-processing devices with memory and micron-scale
connectivity function},
publisher = {arXiv},
reportid = {FZJ-2024-01624},
year = {2023},
abstract = {The connectivity within single carrier
information-processing devices requires transport and
storage of single charge quanta. Our all-electrical Si/SiGe
shuttle device, called quantum bus (QuBus), spans a length
of 10 $\mathrmμ$m and is operated by only six
simply-tunable voltage pulses. It operates in conveyor-mode,
i.e. the electron is adiabatically transported while
confined to a moving QD. We introduce a characterization
method, called shuttle-tomography, to benchmark the
potential imperfections and local shuttle-fidelity of the
QuBus. The fidelity of the single-electron shuttle across
the full device and back (a total distance of 19
$\mathrmμ$m) is $(99.7 \pm 0.3)\,\\%$. Using the QuBus, we
position and detect up to 34 electrons and initialize a
register of 34 quantum dots with arbitrarily chosen patterns
of zero and single-electrons. The simple operation signals,
compatibility with industry fabrication and low
spin-environment-interaction in $^{28}$Si/SiGe, promises
spin-conserving transport of spin qubits for quantum
connectivity in quantum computing architectures.},
keywords = {Mesoscale and Nanoscale Physics (cond-mat.mes-hall) (Other)
/ Quantum Physics (quant-ph) (Other) / FOS: Physical
sciences (Other)},
cin = {PGI-11},
cid = {I:(DE-Juel1)PGI-11-20170113},
pnm = {5221 - Advanced Solid-State Qubits and Qubit Systems
(POF4-522)},
pid = {G:(DE-HGF)POF4-5221},
typ = {PUB:(DE-HGF)25},
doi = {10.48550/ARXIV.2306.16375},
url = {https://juser.fz-juelich.de/record/1023043},
}