Resonant current from singlet-triplet state mixing in coupled quantum dots
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arXiv
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866913700685807616 |
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| author | Giavaras, G. |
| author_facet | Giavaras, G. |
| contents | Electrically driven spin resonances in double quantum dots can lift the spin blockade and give rise to a resonant current. This current can probe the properties of coupled two-spin states for different quantum dot configurations. Using a Floquet-Markov quantum transport model we compute the resonant current for different driving amplitudes and ac field frequencies in spin-orbit coupled quantum dots. We show that the resonant current has a very rich interference pattern which can give valuable insight into the singlet-triplet state mixing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_14510 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Resonant current from singlet-triplet state mixing in coupled quantum dots Giavaras, G. Mesoscale and Nanoscale Physics Electrically driven spin resonances in double quantum dots can lift the spin blockade and give rise to a resonant current. This current can probe the properties of coupled two-spin states for different quantum dot configurations. Using a Floquet-Markov quantum transport model we compute the resonant current for different driving amplitudes and ac field frequencies in spin-orbit coupled quantum dots. We show that the resonant current has a very rich interference pattern which can give valuable insight into the singlet-triplet state mixing. |
| title | Resonant current from singlet-triplet state mixing in coupled quantum dots |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2502.14510 |