Academic Journal
Quantum information density scaling and qubit operation time constraints of CMOS silicon-based quantum computer architectures
| العنوان: | Quantum information density scaling and qubit operation time constraints of CMOS silicon-based quantum computer architectures |
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| المؤلفون: | Rotta D, Sebastiano F, Charbon E, Prati E |
| المساهمون: | D. Rotta, F. Sebastiano, E. Charbon, E. Prati |
| سنة النشر: | 2017 |
| المجموعة: | The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
| مصطلحات موضوعية: | Quantum computer, Silicon qubit, Microelectronics, Settore FIS/03 - Fisica della Materia |
| الوصف: | Even the quantum simulation of an apparently simple molecule such as Fe2S2 requires a considerable number of qubits of the order of 106, while more complex molecules such as alanine (C3H7NO2) require about a hundred times more. In order to assess such a multimillion scale of identical qubits and control lines, the silicon platform seems to be one of the most indicated routes as it naturally provides, together with qubit functionalities, the capability of nanometric, serial, and industrial-quality fabrication. The scaling trend of microelectronic devices predicting that computing power would double every 2 years, known as Moore's law, according to the new slope set after the 32-nm node of 2009, suggests that the technology roadmap will achieve the 3-nm manufacturability limit proposed by Kelly around 2020. Today, circuital quantum information processing architectures are predicted to take advantage from the scalability ensured by silicon technology. However, the maximum amount of quantum information per unit surface that can be stored in silicon-based qubits and the consequent space constraints on qubit operations have never been addressed so far. This represents one of the key parameters toward the implementation of quantum error correction for faulttolerant quantum information processing and its dependence on the features of the technology node. The maximum quantum information per unit surface virtually storable and controllable in the compact exchange-only silicon double quantum dot qubit architecture is expressed as a function of the complementary metal-oxide-semiconductor technology node, so the size scale optimizing both physical qubit operation time and quantum error correction requirements is assessed by reviewing the physical and technological constraints. According to the requirements imposed by the quantum error correction method and the constraints given by the typical strength of the exchange coupling, we determine the workable operation frequency range of a silicon complementary ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/wos/WOS:000404819800001; volume:3; issue:1; firstpage:1; lastpage:14; numberofpages:14; journal:NPJ QUANTUM INFORMATION; http://hdl.handle.net/2434/908753; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85035123588 |
| DOI: | 10.1038/s41534-017-0023-5 |
| الاتاحة: | http://hdl.handle.net/2434/908753 https://doi.org/10.1038/s41534-017-0023-5 |
| رقم الانضمام: | edsbas.16386F21 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/s41534-017-0023-5 |
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