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dc.contributor.authorBroome, MA
dc.contributor.authorGorman, SK
dc.contributor.authorHouse, MG
dc.contributor.authorHile, SJ
dc.contributor.authorKeizer, JG
dc.contributor.authorKeith, D
dc.contributor.authorHill, CD
dc.contributor.authorWatson, TF
dc.contributor.authorBaker, WJ
dc.contributor.authorHollenberg, LCL
dc.contributor.authorSimmons, MY
dc.date.accessioned2020-12-10T00:01:41Z
dc.date.available2020-12-10T00:01:41Z
dc.date.issued2018-03-07
dc.identifierpii: 10.1038/s41467-018-02982-x
dc.identifier.citationBroome, M. A., Gorman, S. K., House, M. G., Hile, S. J., Keizer, J. G., Keith, D., Hill, C. D., Watson, T. F., Baker, W. J., Hollenberg, L. C. L. & Simmons, M. Y. (2018). Two-electron spin correlations in precision placed donors in silicon. NATURE COMMUNICATIONS, 9 (1), https://doi.org/10.1038/s41467-018-02982-x.
dc.identifier.issn2041-1723
dc.identifier.urihttp://hdl.handle.net/11343/253393
dc.description.abstractSubstitutional donor atoms in silicon are promising qubits for quantum computation with extremely long relaxation and dephasing times demonstrated. One of the critical challenges of scaling these systems is determining inter-donor distances to achieve controllable wavefunction overlap while at the same time performing high fidelity spin readout on each qubit. Here we achieve such a device by means of scanning tunnelling microscopy lithography. We measure anti-correlated spin states between two donor-based spin qubits in silicon separated by 16 ± 1 nm. By utilising an asymmetric system with two phosphorus donors at one qubit site and one on the other (2P-1P), we demonstrate that the exchange interaction can be turned on and off via electrical control of two in-plane phosphorus doped detuning gates. We determine the tunnel coupling between the 2P-1P system to be 200 MHz and provide a roadmap for the observation of two-electron coherent exchange oscillations.
dc.languageEnglish
dc.publisherNATURE PUBLISHING GROUP
dc.titleTwo-electron spin correlations in precision placed donors in silicon
dc.typeJournal Article
dc.identifier.doi10.1038/s41467-018-02982-x
melbourne.affiliation.departmentSchool of Physics
melbourne.source.titleNature Communications
melbourne.source.volume9
melbourne.source.issue1
dc.rights.licenseCC BY
melbourne.elementsid1312894
melbourne.contributor.authorHollenberg, Lloyd
dc.identifier.eissn2041-1723
melbourne.accessrightsOpen Access


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