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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2410.19537 |
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| _version_ | 1866912085762375680 |
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| author | Filipovic, Jovana Kundu, Ankit Vij, Neelesh Kumar Fécherolle, Simon Lemaître, Aristide Gupta, Shilpi Krebs, Olivier |
| author_facet | Filipovic, Jovana Kundu, Ankit Vij, Neelesh Kumar Fécherolle, Simon Lemaître, Aristide Gupta, Shilpi Krebs, Olivier |
| contents | Doping a self-assembled InGaAs/GaAs quantum dot (QD) with a single Mn atom, a magnetic acceptor impurity, provides a quantum system with discrete energy levels and original spin-dependent optical selection rules, which thus has large potential in quantum photonics, notably as a source of multi-entangled photons. To investigate this potential further, we perform coherent optical spectroscopy under continuous wave excitation of the 3-level V-like system formed in such a Mn-doped QD when charged by a single hole. In spite of a large inhomogeneous broadening of the optical transitions, we demonstrate Autler-Townes splitting both by resonant Raman scattering and by probe absorption spectroscopy for different saturation powers. Analysing these data with a comprehensive model based on optical Bloch equations, we show evidence for quantum interference within the V-like system and assess the pure dephasing rate between the corresponding spin states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_19537 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Coherent spectroscopy of a single Mn-doped InGaAs quantum dot Filipovic, Jovana Kundu, Ankit Vij, Neelesh Kumar Fécherolle, Simon Lemaître, Aristide Gupta, Shilpi Krebs, Olivier Mesoscale and Nanoscale Physics Quantum Physics Doping a self-assembled InGaAs/GaAs quantum dot (QD) with a single Mn atom, a magnetic acceptor impurity, provides a quantum system with discrete energy levels and original spin-dependent optical selection rules, which thus has large potential in quantum photonics, notably as a source of multi-entangled photons. To investigate this potential further, we perform coherent optical spectroscopy under continuous wave excitation of the 3-level V-like system formed in such a Mn-doped QD when charged by a single hole. In spite of a large inhomogeneous broadening of the optical transitions, we demonstrate Autler-Townes splitting both by resonant Raman scattering and by probe absorption spectroscopy for different saturation powers. Analysing these data with a comprehensive model based on optical Bloch equations, we show evidence for quantum interference within the V-like system and assess the pure dephasing rate between the corresponding spin states. |
| title | Coherent spectroscopy of a single Mn-doped InGaAs quantum dot |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2410.19537 |