QECOOL: On-Line Quantum Error Correction with a Superconducting Decoder for Surface Code
QECOOL: On-Line Quantum Error Correction with a Superconducting Decoder for Surface Code
复制标题
QECOOL:使用超导解码器对表面代码进行在线量子纠错
DOI:
10.1109/dac18074.2021.9586326
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Tabuchi Yutaka
中科院分区:
文献类型:
--
作者:
Ueno Yosuke;Kondo Masaaki;Tanaka Masamitsu;Suzuki Yasunari;Tabuchi Yutaka
Due to the low error tolerance of a qubit, detecting and correcting errors on it is essential for fault-tolerant quantum computing. Surface code (SC) associated with its decoding algorithm is one of the most promising quantum error correction (QEC) methods. QEC needs to be very power-efficient since the power budget is limited inside of a dilution refrigerator for superconducting qubits by which one of the most successful quantum computers (QCs) is built. In this paper, we propose an online-QEC algorithm and its hardware implementation with SFQ based superconducting digital circuits. We design a key building block of the proposed hardware with an SFQ cell library and evaluate it by the SPICE-level simulation. Each logic element is composed of about 3000 Josephson junctions and power consumption is aboutwhen operating with 2 GHz clock frequency which meets the required decoding speed. Our decoder is simulated on a quantum error simulator for code distances 5 to 13 and achieves a 1.0% accuracy threshold.
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DOI:
--
发表时间:
1989
期刊:
影响因子:
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作者:
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DOI:
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DOI:
--
发表时间:
2017
期刊:
International Symposium on Memory Systems
影响因子:
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