理化学研究所 計算科学研究センター

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第168回

第168回 第3部
日時: 2019年5月20日(月)、14:10 - 14:45
場所: R-CCS 1階セミナー室

・招待講演4:Extending Classical Processors to Support Future Large Scale Quantum Accelerators
・講演者: Butko Anastasiia (Lawrence Berkeley National Laboratory)
※発表・スライド共に英語

講演要旨: 詳細を見る

Extensive research in material science together with outstanding engineering efforts allowed quantum technology to be significantly improved hence enabling continuing scaling of quantum circuit size. However, quantum circuit scaling itself does not guarantee any practical use without appropriate progress on the part of classical control hardware and software. To operate such a large-scale universal quantum computer with thousands of qubits, extensive classical computational resources will be required. Control hardware includes multiple layers each of which is responsible for a specific set of tasks, e.g. controllers, digital-analogue and analogue-digital converters, filters, waveform generators, etc. At this early stage of quantum architecture development, there is no clear understanding of where the upcoming challenges will be addressed through the entire stack of complex digital and analogue circuits. However, we expect that control processor will become a crucial part for successful implementation and adoption of future quantum computers.
In our talk, we discuss the challenges that classical processors will face while controlling future large-scale quantum systems. We discuss how these challenges will affect processor micro-architecture to guarantee on time quantum gate execution, continuing qubit state measurement, store and analysis, support massive parallelism and perform advanced bit manipulations on the top of the measured data.