TY - JOUR
T1 - Multiple-Quantum Transitions and Charge-Induced Decoherence of Donor Nuclear Spins in Silicon
AU - Franke, David P.
AU - Pflüger, Moritz P.D.
AU - Itoh, Kohei M.
AU - Brandt, Martin S.
N1 - Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/6/15
Y1 - 2017/6/15
N2 - We study single- and multiquantum transitions of the nuclear spins of an ensemble of ionized arsenic donors in silicon and find quadrupolar effects on the coherence times, which we link to fluctuating electrical field gradients present after the application of light and bias voltage pulses. To determine the coherence times of superpositions of all orders in the 4-dimensional Hilbert space, we use a phase-cycling technique and find that, when electrical effects were allowed to decay, these times scale as expected for a fieldlike decoherence mechanism such as the interaction with surrounding Si29 nuclear spins.
AB - We study single- and multiquantum transitions of the nuclear spins of an ensemble of ionized arsenic donors in silicon and find quadrupolar effects on the coherence times, which we link to fluctuating electrical field gradients present after the application of light and bias voltage pulses. To determine the coherence times of superpositions of all orders in the 4-dimensional Hilbert space, we use a phase-cycling technique and find that, when electrical effects were allowed to decay, these times scale as expected for a fieldlike decoherence mechanism such as the interaction with surrounding Si29 nuclear spins.
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U2 - 10.1103/PhysRevLett.118.246401
DO - 10.1103/PhysRevLett.118.246401
M3 - Article
C2 - 28665647
AN - SCOPUS:85020551007
SN - 0031-9007
VL - 118
JO - Physical review letters
JF - Physical review letters
IS - 24
M1 - 246401
ER -