تقرير
An efficient singlet-triplet spin qubit to fiber interface assisted by a photonic crystal cavity
| العنوان: | An efficient singlet-triplet spin qubit to fiber interface assisted by a photonic crystal cavity |
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| المؤلفون: | Wu, Kui, Kindel, Sebastian, Descamps, Thomas, Hangleiter, Tobias, Müller, Jan Christoph, Rodrigo, Rebecca, Merget, Florian, Bluhm, Hendrik, Witzens, Jeremy |
| المصدر: | The 25th European Conference on Integrated Optics, Springer Proceedings in Physics 402, pp. 365-372, 2024 |
| سنة النشر: | 2024 |
| المجموعة: | Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Physics - Optics, Quantum Physics |
| الوصف: | We introduce a novel optical interface between a singlet-triplet spin qubit and a photonic qubit which would offer new prospects for future quantum communication applications. The interface is based on a 220 nm thick GaAs/Al-GaAs heterostructure membrane and features a gate-defined singlet-triplet qubit, a gate-defined optically active quantum dot, a photonic crystal cavity and a bot-tom gold reflector. All essential components can be lithographically defined and deterministically fabricated, which greatly increases the scalability of on-chip in-tegration. According to our FDTD simulations, the interface provides an overall coupling efficiency of 28.7% into a free space Gaussian beam, assuming an SiO2 interlayer filling the space between the reflector and the membrane. The performance can be further increased to 48.5% by undercutting this SiO2 interlayer below the photonic crystal. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/978-3-031-63378-2 |
| URL الوصول: | http://arxiv.org/abs/2406.14392 |
| رقم الأكسشن: | edsarx.2406.14392 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/978-3-031-63378-2 |
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