Relaxation method in description of RAM memory cell in RSFQ computer

Relaxation method in description of RAM memory cell in RSFQ computer
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RSFQ计算机中RAM存储单元描述中的松弛方法

DOI:
10.1108/compel-06-2017-0242
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发表时间:
2018
期刊:
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering
影响因子:
--
通讯作者:
K. Rusek
K. Rusek
中科院分区:
--
文献类型:
--
作者:
K. D. Pomorski;H. Akaike;A. Fujimaki;K. Rusek

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超导快速单通量量子计算机(RSFQ)的实现面临的主要障碍是缺乏可靠的、可扩展的超导随机存取存储器(RAM)单元。这项工作点的方法和结构,应在未来的实施RSFQ RAM.Design/methodology/approachA新的设计RAM使用两个铁磁条在接近超导体的RSFQ计算机(1)。本文还探讨了使用RAM RSFQ单元作为可调谐超导量子比特的概念。研究结果超导RAM单元的两种基本结构是用二维集成方案开发的。研究限制/含义所提出的RAM单元与其他建议的方案(4),(3),(2),(5)相比,具有更小的尺寸和更大的可扩展性。实际含义目前,RSQF计算机实现的主要障碍是缺少可靠的RAM单元。RSQF计算机将有潜力采取大部分经典的超级计算机,因为它消耗更少的功率。社会影响当一个人使用RSQF计算机的大数据和计算中心时,计算能力将更便宜。这是一个问题的一些时间。独创性/valueThe出版物提出了新的设计超导RAM单元中使用的RSQF计算机。用数值松弛法求解双调和Ginzburg-Landau方程。作为一个特定的问题的解决方案的分析方法。
PurposeThe lack of reliable and scalable superconducting random access memory (RAM) cells is the main obstacle for full implementation of superconducting rapid single flux quantum(RSFQ) computers. This work points the methodology and the structures that shall be used in future implementation of RSFQ RAM.Design/methodology/approachA new design for RAM using two ferromagnetic strips in proximity to the superconductor in a RSFQ computer is presented (1). The concept of using a RAM RSFQ cell as a tuneable superconducting qubit is also explored.FindingsTwo basic architectures for superconducting RAM cells were developed with integration schemes in two dimensions.Research limitations/implicationsThe proposed RAM cells as depicted in and offer smaller size and greater 3 scalability in comparison to other suggested schemes (4), (3), (2), (5).Practical implicationsCurrently, the main obstacle in implementation of RSQF computer is lack of reliable RAM cell. RSQF computer shall have potential to take a large fraction of classical supercomputers, as it consumes much less power.Social implicationsComputation power shall be cheaper when one uses RSQF computers for big data and computational centres. It is a matter of some time.Originality/valueThe publication presents the new design of superconducting RAM cell for use in RSQF computer. The numerical relaxation method is used to solve biharmonic Ginzburg–Landau equation. The analytic approach as a solution of a specified problem is given.
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影响因子: --
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影响因子: --
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