Optimal Control of a Cavity-Mediated 
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 Gate between Silicon Spin Qubits

Young, Steve M.; Jacobson, Noah Tobias; Petta, J. R.

doi:10.1103/physrevapplied.18.064082

Cited by 4 publications

(3 citation statements)

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“…created by a gradient magnetic field. The exchange gate [35] and iSWAP gate [36] between spin qubits can further be mediated via virtual microwave photons, and optimal operating regimes for an iSWAP gate were revealed [36]. Although our paper focuses on the static longitudinal spin-photon interaction, the dynamic longitudinal spin-photon interaction, i.e.…”

Section: Discussion and Summarymentioning

confidence: 97%

“…the double dot confining potential is asymmetrical. Spin-photon interaction can also be mediated by a synthetic spin-orbit coupling [27,35,36,73], e.g. created by a gradient magnetic field.…”

Section: Discussion and Summarymentioning

confidence: 99%

“…The basic models include the Jaynes-Cummings model [24] and the Rabi model [25]. There is an increasing interest in studying the spin-photon interaction in semiconductor quantum dot [26][27][28][29][30][31][32][33][34][35][36], due to its potential application in achieving the long distance two spin interaction [37,38]. The spinorbit coupling in semiconductor quantum dot provides a natural coupling mechanism for the spin and photons.…”

Section: Introductionmentioning

confidence: 99%

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Spin-photon interaction in a nanowire quantum dot with asymmetrical confining potential

2024

J. Phys.: Condens. Matter

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The electron (hole) spin-photon interaction is studied in an asymmetrical InSb (Ge) nanowire quantum dot. The spin-orbit coupling in the quantum dot mediates not only a transverse spin-photon interaction, but also a longitudinal spin-photon interaction due to the asymmetry of the confining potential. Both the transverse and the longitudinal spin-photon interactions have non-monotonic dependence on the spin-orbit coupling. For realistic spin-orbit coupling in the quantum dot, the longitudinal spin-photon interaction is much (at least one order) smaller than the transverse spin-photon interaction. The order of the transverse spin-photon interaction is about 1 nm in terms of length $|z_{eg}|$, or 0.1 MHz in terms of frequency $eE_{0}|z_{eg}|/h$ for a moderate cavity electric field strength $E_{0}=0.4$ V/m. 

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Section: Discussion and Summarymentioning

confidence: 97%