Flopping-mode electric dipole spin resonance

X. Croot, X. Mi, S. Putz, M. Benito, F. Borjans, G. Burkard, J. R. Petta

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


Traditional approaches to controlling single spins in quantum dots require the generation of large electromagnetic fields to drive many Rabi oscillations within the spin coherence time. We demonstrate "flopping-mode"electric dipole spin resonance, where an electron is electrically driven in a Si/SiGe double quantum dot in the presence of a large magnetic field gradient. At zero detuning, charge delocalization across the double quantum dot enhances coupling to the drive field and enables low-power electric dipole spin resonance. Through dispersive measurements of the single-electron spin state, we demonstrate a nearly three order of magnitude improvement in driving efficiency using flopping-mode resonance, which should facilitate low-power spin control in quantum dot arrays.

Original languageEnglish (US)
Article number012006
JournalPhysical Review Research
Issue number1
StatePublished - Jan 2020

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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