Coherent Operations and Screening in Multielectron Spin Qubits

Research output: Contribution to journal › Journal article › Research › peer-review

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Coherent Operations and Screening in Multielectron Spin Qubits. / Higginbotham, Andrew Patrick; Kuemmeth, Ferdinand; Hanson, M.P.; Gossard, A.C.; Marcus, Charles M.

In: Physical Review Letters, Vol. 112, 026801, 14.01.2014.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Higginbotham, AP, Kuemmeth, F, Hanson, MP, Gossard, AC & Marcus, CM 2014, 'Coherent Operations and Screening in Multielectron Spin Qubits', Physical Review Letters, vol. 112, 026801. https://doi.org/10.1103/PhysRevLett.112.026801

APA

Higginbotham, A. P., Kuemmeth, F., Hanson, M. P., Gossard, A. C., & Marcus, C. M. (2014). Coherent Operations and Screening in Multielectron Spin Qubits. Physical Review Letters, 112, [026801]. https://doi.org/10.1103/PhysRevLett.112.026801

Vancouver

Higginbotham AP, Kuemmeth F, Hanson MP, Gossard AC, Marcus CM. Coherent Operations and Screening in Multielectron Spin Qubits. Physical Review Letters. 2014 Jan 14;112. 026801. https://doi.org/10.1103/PhysRevLett.112.026801

Author

Higginbotham, Andrew Patrick ; Kuemmeth, Ferdinand ; Hanson, M.P. ; Gossard, A.C. ; Marcus, Charles M. / Coherent Operations and Screening in Multielectron Spin Qubits. In: Physical Review Letters. 2014 ; Vol. 112.

Bibtex

@article{69100fc5ed7d45ba9c867d68fd08a4f6,

title = "Coherent Operations and Screening in Multielectron Spin Qubits",

abstract = "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 (>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.",

author = "Higginbotham, {Andrew Patrick} and Ferdinand Kuemmeth and M.P. Hanson and A.C. Gossard and Marcus, {Charles M.}",

note = "preprint can be found at http://arxiv.org/abs/1306.2720",

year = "2014",

month = jan,

day = "14",

doi = "10.1103/PhysRevLett.112.026801",

language = "English",

volume = "112",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

}

RIS

TY - JOUR

T1 - Coherent Operations and Screening in Multielectron Spin Qubits

AU - Higginbotham, Andrew Patrick

AU - Kuemmeth, Ferdinand

AU - Hanson, M.P.

AU - Gossard, A.C.

AU - Marcus, Charles M.

N1 - preprint can be found at http://arxiv.org/abs/1306.2720

PY - 2014/1/14

Y1 - 2014/1/14

N2 - 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 (>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.

AB - 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 (>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.

U2 - 10.1103/PhysRevLett.112.026801

DO - 10.1103/PhysRevLett.112.026801

M3 - Journal article

C2 - 24484035

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

M1 - 026801

ER -

ID: 91312611