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/Si...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-01-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.012006 |
| _version_ | 1827286334713102336 |
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| author | X. Croot X. Mi S. Putz M. Benito F. Borjans G. Burkard J. R. Petta |
| author_facet | X. Croot X. Mi S. Putz M. Benito F. Borjans G. Burkard J. R. Petta |
| author_sort | X. Croot |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-24T10:29:36Z |
| format | Article |
| id | doaj.art-d8d452768ac34cdabb36e68c37566d15 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:29:36Z |
| publishDate | 2020-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-d8d452768ac34cdabb36e68c37566d152024-04-12T16:48:28ZengAmerican Physical SocietyPhysical Review Research2643-15642020-01-012101200610.1103/PhysRevResearch.2.012006Flopping-mode electric dipole spin resonanceX. CrootX. MiS. PutzM. BenitoF. BorjansG. BurkardJ. R. PettaTraditional 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.http://doi.org/10.1103/PhysRevResearch.2.012006 |
| spellingShingle | X. Croot X. Mi S. Putz M. Benito F. Borjans G. Burkard J. R. Petta Flopping-mode electric dipole spin resonance Physical Review Research |
| title | Flopping-mode electric dipole spin resonance |
| title_full | Flopping-mode electric dipole spin resonance |
| title_fullStr | Flopping-mode electric dipole spin resonance |
| title_full_unstemmed | Flopping-mode electric dipole spin resonance |
| title_short | Flopping-mode electric dipole spin resonance |
| title_sort | flopping mode electric dipole spin resonance |
| url | http://doi.org/10.1103/PhysRevResearch.2.012006 |
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