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Coherent manipulation of coupled electron spins in semiconductor quantum dots

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Coherent manipulation of coupled electron spins in semiconductor quantum dots. / Petta; Johnson, AC; Taylor, JM et al.
In: Science, Vol. 309, No. 5744, 30.09.2005, p. 2180-2184.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Petta, Johnson, AC, Taylor, JM, Laird, EA, Yacoby, A, Lukin, MD, Marcus, CM, Hanson, MP & Gossard, AC 2005, 'Coherent manipulation of coupled electron spins in semiconductor quantum dots', Science, vol. 309, no. 5744, pp. 2180-2184. https://doi.org/10.1126/science.1116955

APA

Petta, Johnson, AC., Taylor, JM., Laird, E. A., Yacoby, A., Lukin, MD., Marcus, CM., Hanson, MP., & Gossard, AC. (2005). Coherent manipulation of coupled electron spins in semiconductor quantum dots. Science, 309(5744), 2180-2184. https://doi.org/10.1126/science.1116955

Vancouver

Petta, Johnson AC, Taylor JM, Laird EA, Yacoby A, Lukin MD et al. Coherent manipulation of coupled electron spins in semiconductor quantum dots. Science. 2005 Sept 30;309(5744):2180-2184. doi: 10.1126/science.1116955

Author

Petta ; Johnson, AC ; Taylor, JM et al. / Coherent manipulation of coupled electron spins in semiconductor quantum dots. In: Science. 2005 ; Vol. 309, No. 5744. pp. 2180-2184.

Bibtex

@article{3ddcd9b648a045aebb2323dbd84b5d02,
title = "Coherent manipulation of coupled electron spins in semiconductor quantum dots",
abstract = "We demonstrated coherent control of a quantum two-level system based on two-electron spin states in a double quantum dot, allowing state preparation, coherent manipulation, and projective readout. These techniques are based on rapid electrical control of the exchange interaction. Separating and later recombining a singlet spin state provided a measurement of the spin dephasing time, T(2)*, of similar to 10 nanoseconds, limited by hyperfine interactions with the gallium arsenide host nuclei. Rabi oscillations of two-electron spin states were demonstrated, and spin-echo pulse sequences were used to suppress hyperfine-induced dephasing. Using these quantum control techniques, a coherence time for two-electron spin states exceeding 1 microsecond was observed.",
keywords = "COMPUTATION, BLOCKADE, COULOMB, SYSTEM",
author = "Petta and AC Johnson and JM Taylor and Laird, {E. A.} and A Yacoby and MD Lukin and CM Marcus and MP Hanson and AC Gossard",
year = "2005",
month = sep,
day = "30",
doi = "10.1126/science.1116955",
language = "English",
volume = "309",
pages = "2180--2184",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "5744",

}

RIS

TY - JOUR

T1 - Coherent manipulation of coupled electron spins in semiconductor quantum dots

AU - Petta, null

AU - Johnson, AC

AU - Taylor, JM

AU - Laird, E. A.

AU - Yacoby, A

AU - Lukin, MD

AU - Marcus, CM

AU - Hanson, MP

AU - Gossard, AC

PY - 2005/9/30

Y1 - 2005/9/30

N2 - We demonstrated coherent control of a quantum two-level system based on two-electron spin states in a double quantum dot, allowing state preparation, coherent manipulation, and projective readout. These techniques are based on rapid electrical control of the exchange interaction. Separating and later recombining a singlet spin state provided a measurement of the spin dephasing time, T(2)*, of similar to 10 nanoseconds, limited by hyperfine interactions with the gallium arsenide host nuclei. Rabi oscillations of two-electron spin states were demonstrated, and spin-echo pulse sequences were used to suppress hyperfine-induced dephasing. Using these quantum control techniques, a coherence time for two-electron spin states exceeding 1 microsecond was observed.

AB - We demonstrated coherent control of a quantum two-level system based on two-electron spin states in a double quantum dot, allowing state preparation, coherent manipulation, and projective readout. These techniques are based on rapid electrical control of the exchange interaction. Separating and later recombining a singlet spin state provided a measurement of the spin dephasing time, T(2)*, of similar to 10 nanoseconds, limited by hyperfine interactions with the gallium arsenide host nuclei. Rabi oscillations of two-electron spin states were demonstrated, and spin-echo pulse sequences were used to suppress hyperfine-induced dephasing. Using these quantum control techniques, a coherence time for two-electron spin states exceeding 1 microsecond was observed.

KW - COMPUTATION

KW - BLOCKADE

KW - COULOMB

KW - SYSTEM

U2 - 10.1126/science.1116955

DO - 10.1126/science.1116955

M3 - Journal article

VL - 309

SP - 2180

EP - 2184

JO - Science

JF - Science

SN - 0036-8075

IS - 5744

ER -