Progress in silicon-based quantum computing
AuthorClark, RG; Brenner, R; Buehler, TM; Chan, V; Curson, NJ; Dzurak, AS; Gauja, E; Goan, HS; Greentree, AD; Hallam, T; ...
Source TitlePhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
University of Melbourne Author/sGreentree, Andrew; Hollenberg, Lloyd; Jamieson, David; McCallum, Jeffrey; Pakes, Christopher; Prawer, Steven; WELLARD, CAMERON; YANG, CHANGYI
Document TypeJournal Article
CitationsClark, R. G., Brenner, R., Buehler, T. M., Chan, V., Curson, N. J., Dzurak, A. S., Gauja, E., Goan, H. S., Greentree, A. D., Hallam, T., Hamilton, A. R., Hollenberg, L. C. L., Jamieson, D. N., McCallum, J. C., Milburn, G. J., O'Brien, J. L., Oberbeck, L., Pakes, C. I., Prawer, S. D. ,... Yang, C. (2003). Progress in silicon-based quantum computing. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 361 (1808), pp.1451-1471. https://doi.org/10.1098/rsta.2003.1221.
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C1 - Journal Articles Refereed
We review progress at the Australian Centre for Quantum Computer Technology towards the fabrication and demonstration of spin qubits and charge qubits based on phosphorus donor atoms embedded in intrinsic silicon. Fabrication is being pursued via two complementary pathways: a 'top-down' approach for near-term production of few-qubit demonstration devices and a 'bottom-up' approach for large-scale qubit arrays with sub-nanometre precision. The 'top-down' approach employs a low-energy (keV) ion beam to implant the phosphorus atoms. Single-atom control during implantation is achieved by monitoring on-chip detector electrodes, integrated within the device structure. In contrast, the 'bottom-up' approach uses scanning tunnelling microscope lithography and epitaxial silicon overgrowth to construct devices at an atomic scale. In both cases, surface electrodes control the qubit using voltage pulses, and dual single-electron transistors operating near the quantum limit provide fast read-out with spurious-signal rejection.
KeywordsCondensed Matter Physics - Electronic and Magnetic Properties; Superconductivity; Physical Sciences
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