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Dressed photon-orbital states in a quantum dot: Inter-valley spin resonance

Autor: Scarlino, P., Kawakami, E., Jullien, T., Ward, D. R., Savage, D. E., Lagally, M. G., Friesen, Mark, Coppersmith, S. N., Eriksson, M. A., Vandersypen, L. M. K.

Publikováno v: Phys. Rev. B 95, 165429 (2017)

The valley degree of freedom is intrinsic to spin qubits in Si/SiGe quantum dots. It has been viewed alternately as a hazard, especially when the lowest valley-orbit splitting is small compared to the thermal energy, or as an asset, most prominently

Externí odkaz: http://arxiv.org/abs/1608.06538

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Gate fidelity and coherence of an electron spin in a Si/SiGe quantum dot with micromagnet

Autor: Kawakami, E., Jullien, T., Scarlino, P., Ward, D. R., Savage, D. E., Lagally, M. G., Dobrovitski, V. V., Friesen, Mark, Coppersmith, S. N., Eriksson, M. A., Vandersypen, L. M. K.

Publikováno v: PNAS 2016 113 (42) 11738-11743

The gate fidelity and the coherence time of a qubit are important benchmarks for quantum computation. We construct a qubit using a single electron spin in a Si/SiGe quantum dot and control it electrically via an artificial spin-orbit field from a mic

Externí odkaz: http://arxiv.org/abs/1602.08334

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Fractionalization of minimal excitations in integer quantum Hall edge channels

Autor: Grenier, C., Dubois, J., Jullien, T., Roulleau, P., Glattli, D. C., Degiovanni, P.

Publikováno v: Phys. Rev. B 88, 085302 (2013)

A theoretical study of the single electron coherence properties of Lorentzian and rectangular pulses is presented. By combining bosonization and the Floquet scattering approach, the effect of interactions on a periodic source of voltage pulses is com

Externí odkaz: http://arxiv.org/abs/1301.6777

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