Efficient driving of a spin-qubit using single-atom magnets
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866908698682589184 |
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| author | Reina-Gálvez, Jose Le, Hoang-Anh Bui, Hong Thi Phark, Soo-hyon Lorente, Nicolás Wolf, Christoph |
| author_facet | Reina-Gálvez, Jose Le, Hoang-Anh Bui, Hong Thi Phark, Soo-hyon Lorente, Nicolás Wolf, Christoph |
| contents | The realization of electron-spin resonance at the single-atom level using scanning tunneling microscopy has opened new avenues for coherent quantum sensing and quantum state manipulation at the ultimate size limit. This allows to build many-body Hamiltonians and the study of their complex physical behavior. Recently, a novel qubit platform has emerged from this field, raising questions about the driving mechanism from single-atom magnets. In this work, we demonstrate how single-atom magnets can be used to drive a nearby single spin qubit efficiently. We show that the modulation of exchange coupling is the primary driving force, which successfully reproduces Rabi rates in the tens of MHz range, consistent with experimental data, while also addressing critical aspects related to the optimization of experimental parameters. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_07289 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Efficient driving of a spin-qubit using single-atom magnets Reina-Gálvez, Jose Le, Hoang-Anh Bui, Hong Thi Phark, Soo-hyon Lorente, Nicolás Wolf, Christoph Mesoscale and Nanoscale Physics Quantum Physics The realization of electron-spin resonance at the single-atom level using scanning tunneling microscopy has opened new avenues for coherent quantum sensing and quantum state manipulation at the ultimate size limit. This allows to build many-body Hamiltonians and the study of their complex physical behavior. Recently, a novel qubit platform has emerged from this field, raising questions about the driving mechanism from single-atom magnets. In this work, we demonstrate how single-atom magnets can be used to drive a nearby single spin qubit efficiently. We show that the modulation of exchange coupling is the primary driving force, which successfully reproduces Rabi rates in the tens of MHz range, consistent with experimental data, while also addressing critical aspects related to the optimization of experimental parameters. |
| title | Efficient driving of a spin-qubit using single-atom magnets |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2408.07289 |