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29Si nuclear spins as a resource for donor spin qubits in silicon

التفاصيل البيبلوغرافية
العنوان: 29Si nuclear spins as a resource for donor spin qubits in silicon
المؤلفون: Gary Wolfowicz, Pierre-André Mortemousque, Roland Guichard, Stephanie Simmons, Mike L W Thewalt, Kohei M Itoh, John J L Morton
المصدر: New Journal of Physics, Vol 18, Iss 2, p 023021 (2016)
بيانات النشر: IOP Publishing, 2016.
سنة النشر: 2016
المجموعة: LCC:Science
LCC:Physics
مصطلحات موضوعية: nuclear spins, decoherence, quantum error correction, donors in silicon, Science, Physics, QC1-999
الوصف: Nuclear spin registers in the vicinity of electron spins in solid state systems offer a powerful resource to address the challenge of scalability in quantum architectures. We investigate here the properties of ^29 Si nuclear spins surrounding donor atoms in silicon, and consider the use of such spins, combined with the donor nuclear spin, as a quantum register coupled to the donor electron spin. We find the coherence of the nearby ^29 Si nuclear spins is effectively protected by the presence of the donor electron spin, leading to coherence times in the second timescale—over two orders of magnitude greater than the coherence times in bulk silicon. We theoretically investigate the use of such a register for quantum error correction (QEC), including methods to protect nuclear spins from the ionisation/neutralisation of the donor, which is necessary for the re-initialisation of the ancillae qubits. This provides a route for multi-round QEC using donors in silicon.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1367-2630
العلاقة: https://doaj.org/toc/1367-2630Test
DOI: 10.1088/1367-2630/18/2/023021
الوصول الحر: https://doaj.org/article/9b696b9cc8a1498e9c9191e45b8ac8d9Test
رقم الانضمام: edsdoj.9b696b9cc8a1498e9c9191e45b8ac8d9
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:13672630
DOI:10.1088/1367-2630/18/2/023021