{"user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","abstract":[{"text":"Multielectron spin qubits are demonstrated, and performance examined by comparing coherent exchange oscillations in coupled single-electron and multielectron quantum dots, measured in the same device. Fast (&gt;1 GHz) exchange oscillations with a quality factor Q∼15 are found for the multielectron case, compared to Q∼2 for the single-electron case, the latter consistent with experiments in the literature. A model of dephasing that includes voltage and hyperfine noise is developed that is in good agreement with both single- and multielectron data, though in both cases additional exchange-independent dephasing is needed to obtain quantitative agreement across a broad parameter range.","lang":"eng"}],"publisher":"American Physiological Society","external_id":{"arxiv":["1306.2720"]},"oa":1,"oa_version":"Preprint","doi":"10.1103/PhysRevLett.112.026801","publication":"APS Physics, Physical Review Letters","language":[{"iso":"eng"}],"year":"2014","extern":"1","date_updated":"2021-01-12T08:22:14Z","day":"14","intvolume":"       112","publist_id":"7958","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1306.2720"}],"article_number":"026801","citation":{"ista":"Higginbotham AP, Kuemmeth F, Hanson M, Gossard A, Marcus C. 2014. Coherent operations and screening in multielectron spin qubits. APS Physics, Physical Review Letters. 112(2), 026801.","ieee":"A. P. Higginbotham, F. Kuemmeth, M. Hanson, A. Gossard, and C. Marcus, “Coherent operations and screening in multielectron spin qubits,” <i>APS Physics, Physical Review Letters</i>, vol. 112, no. 2. American Physiological Society, 2014.","mla":"Higginbotham, Andrew P., et al. “Coherent Operations and Screening in Multielectron Spin Qubits.” <i>APS Physics, Physical Review Letters</i>, vol. 112, no. 2, 026801, American Physiological Society, 2014, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.112.026801\">10.1103/PhysRevLett.112.026801</a>.","apa":"Higginbotham, A. P., Kuemmeth, F., Hanson, M., Gossard, A., &#38; Marcus, C. (2014). Coherent operations and screening in multielectron spin qubits. <i>APS Physics, Physical Review Letters</i>. American Physiological Society. <a href=\"https://doi.org/10.1103/PhysRevLett.112.026801\">https://doi.org/10.1103/PhysRevLett.112.026801</a>","chicago":"Higginbotham, Andrew P, Ferdinand Kuemmeth, Micah Hanson, Arthur Gossard, and Charles Marcus. “Coherent Operations and Screening in Multielectron Spin Qubits.” <i>APS Physics, Physical Review Letters</i>. American Physiological Society, 2014. <a href=\"https://doi.org/10.1103/PhysRevLett.112.026801\">https://doi.org/10.1103/PhysRevLett.112.026801</a>.","ama":"Higginbotham AP, Kuemmeth F, Hanson M, Gossard A, Marcus C. Coherent operations and screening in multielectron spin qubits. <i>APS Physics, Physical Review Letters</i>. 2014;112(2). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.112.026801\">10.1103/PhysRevLett.112.026801</a>","short":"A.P. Higginbotham, F. Kuemmeth, M. Hanson, A. Gossard, C. Marcus, APS Physics, Physical Review Letters 112 (2014)."},"author":[{"id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","first_name":"Andrew P","last_name":"Higginbotham","orcid":"0000-0003-2607-2363","full_name":"Higginbotham, Andrew P"},{"full_name":"Kuemmeth, Ferdinand","first_name":"Ferdinand","last_name":"Kuemmeth"},{"full_name":"Hanson, Micah","last_name":"Hanson","first_name":"Micah"},{"first_name":"Arthur","last_name":"Gossard","full_name":"Gossard, Arthur"},{"full_name":"Marcus, Charles","first_name":"Charles","last_name":"Marcus"}],"month":"01","date_published":"2014-01-14T00:00:00Z","title":"Coherent operations and screening in multielectron spin qubits","acknowledgement":"The research is supported by the Intelligence Advanced Research Projects Activity (IARPA), through the Army Research Office Grant No. W911NF-12-1-0354, the DARPA QuEST Program, the Department of Energy, Office of Science, and the Danish National Research Foundation.","date_created":"2018-12-11T11:44:36Z","issue":"2","type":"journal_article","_id":"96","status":"public","volume":112,"quality_controlled":"1","publication_status":"published"}