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001023043 005__ 20240226075501.0
001023043 0247_ $$2doi$$a10.48550/ARXIV.2306.16375
001023043 0247_ $$2datacite_doi$$a10.34734/FZJ-2024-01624
001023043 037__ $$aFZJ-2024-01624
001023043 1001_ $$aXue, Ran$$b0
001023043 245__ $$aSi/SiGe QuBus for single electron information-processing devices with memory and micron-scale connectivity function
001023043 260__ $$barXiv$$c2023
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001023043 520__ $$aThe connectivity within single carrier information-processing devices requires transport and storage of single charge quanta. Our all-electrical Si/SiGe shuttle device, called quantum bus (QuBus), spans a length of 10 $\mathrmμ$m and is operated by only six simply-tunable voltage pulses. It operates in conveyor-mode, i.e. the electron is adiabatically transported while confined to a moving QD. We introduce a characterization method, called shuttle-tomography, to benchmark the potential imperfections and local shuttle-fidelity of the QuBus. The fidelity of the single-electron shuttle across the full device and back (a total distance of 19 $\mathrmμ$m) is $(99.7 \pm 0.3)\,\%$. Using the QuBus, we position and detect up to 34 electrons and initialize a register of 34 quantum dots with arbitrarily chosen patterns of zero and single-electrons. The simple operation signals, compatibility with industry fabrication and low spin-environment-interaction in $^{28}$Si/SiGe, promises spin-conserving transport of spin qubits for quantum connectivity in quantum computing architectures.
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001023043 650_7 $$2Other$$aMesoscale and Nanoscale Physics (cond-mat.mes-hall)
001023043 650_7 $$2Other$$aQuantum Physics (quant-ph)
001023043 650_7 $$2Other$$aFOS: Physical sciences
001023043 7001_ $$aBeer, Max$$b1
001023043 7001_ $$aSeidler, Inga$$b2
001023043 7001_ $$aHumpohl, Simon$$b3
001023043 7001_ $$aTu, Jhih-Sian$$b4
001023043 7001_ $$aTrellenkamp, Stefan$$b5
001023043 7001_ $$0P:(DE-Juel1)196096$$aStruck, Tom$$b6$$ufzj
001023043 7001_ $$0P:(DE-Juel1)172019$$aBluhm, Hendrik$$b7$$ufzj
001023043 7001_ $$0P:(DE-Juel1)172641$$aSchreiber, Lars R.$$b8$$eCorresponding author
001023043 773__ $$a10.48550/ARXIV.2306.16375
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