Flopping-mode electric dipole spin resonance

  • 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.

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Author:X. Croot, X. Mi, S. Putz, Mónica BenitoORCiDGND, F. Borjans, G. Burkard, J. R. Petta
Frontdoor URLhttps://opus.bibliothek.uni-augsburg.de/opus4/104276
Parent Title (English):Physical Review Research
Publisher:American Physical Society (APS)
Place of publication:College Park, MD
Year of first Publication:2020
Publishing Institution:Universität Augsburg
Release Date:2023/05/09
First Page:012006(R)
Institutes:Mathematisch-Naturwissenschaftlich-Technische Fakultät
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Professur für Quantencomputing und Quantengeräte
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):CC-BY 4.0: Creative Commons: Namensnennung (mit Print on Demand)