A charge qubit on solid neon in a spin-qubit compatible circuit QED platform
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866917547785322496 |
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| author | Wang, J. Tian, Y. Grytsenko, I. Jennings, A. Zhou, X. Terai, H. Jin, D. Kawakami, E. |
| author_facet | Wang, J. Tian, Y. Grytsenko, I. Jennings, A. Zhou, X. Terai, H. Jin, D. Kawakami, E. |
| contents | Electrons floating in vacuum provide a clean platform for quantum information processing due to their isolation from material defects; electrons on solid neon have emerged as a promising qubit platform for its long coherence times. Here, toward spin-qubit realization, we couple a single electron on solid neon to a magnetic-field-compatible superconducting NbTiN nanowire resonator. We realize a charge qubit and demonstrate microwave readout and coherent control, with Rabi frequencies up to 76 MHz, an order of magnitude larger than in previous studies. Under strong driving, we observe a qubit frequency shift from nonlinear interactions with the intense microwave field. Deterministic electron trapping at an intended position remains challenging due to solid neon surface roughness; we characterize the electron's position from its differential coupling to distinct electrodes. Although not trapped at an intended position, our estimates indicate that spin-qubit demonstrations remain feasible. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_31185 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A charge qubit on solid neon in a spin-qubit compatible circuit QED platform Wang, J. Tian, Y. Grytsenko, I. Jennings, A. Zhou, X. Terai, H. Jin, D. Kawakami, E. Mesoscale and Nanoscale Physics Quantum Physics Electrons floating in vacuum provide a clean platform for quantum information processing due to their isolation from material defects; electrons on solid neon have emerged as a promising qubit platform for its long coherence times. Here, toward spin-qubit realization, we couple a single electron on solid neon to a magnetic-field-compatible superconducting NbTiN nanowire resonator. We realize a charge qubit and demonstrate microwave readout and coherent control, with Rabi frequencies up to 76 MHz, an order of magnitude larger than in previous studies. Under strong driving, we observe a qubit frequency shift from nonlinear interactions with the intense microwave field. Deterministic electron trapping at an intended position remains challenging due to solid neon surface roughness; we characterize the electron's position from its differential coupling to distinct electrodes. Although not trapped at an intended position, our estimates indicate that spin-qubit demonstrations remain feasible. |
| title | A charge qubit on solid neon in a spin-qubit compatible circuit QED platform |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2605.31185 |