تقرير
Probabilistic teleportation of a quantum dot spin qubit
| العنوان: | Probabilistic teleportation of a quantum dot spin qubit |
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| المؤلفون: | Kojima, Y., Nakajima, T., Noiri, A., Yoneda, J., Otsuka, T., Takeda, K., Li, S., Bartlett, S. D., Ludwig, A., Wieck, A. D., Tarucha, S. |
| المصدر: | npj Quantum Information 7, 68 (2021) |
| سنة النشر: | 2020 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Quantum Physics |
| الوصف: | Electron spin s in semiconductor quantum dot s have been intensively studied for implementing quantum computation and high fidelity single and two qubit operation s have recently been achieved . Quantum teleportation is a three qubit protocol exploiting quantum entanglement and it serv es as a n essential primitive for more sophisticated quantum algorithm s Here, we demonstrate a scheme for quantum teleportation based on direct Bell measurement for a single electron spin qubit in a triple quantum dot utilizing the Pauli exclusion principle to create and detect maximally entangled state s . T he single spin polarization is teleported from the input qubit to the output qubit with a fidelity of 0.9 1 We find this fidelity is primarily limited by singlet triplet mixing which can be improved by optimizing the device parameters Our results may be extended to quantum algorithms with a larger number of se miconductor spin qubit s |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1038/s41534-021-00403-4 |
| URL الوصول: | http://arxiv.org/abs/2011.04881 |
| رقم الأكسشن: | edsarx.2011.04881 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1038/s41534-021-00403-4 |
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