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高分辨率的多变量函数的储蓄性表示的量子张量交叉插曲
Marc K Ritter1, Yuriel Núñez Fernández2, Markus Wallerberger3
1Arnold Sommerfeld Center for Theoretical Physics, Center for NanoScience, and Munich Center for Quantum Science and Technology, Ludwig-Maximilians-Universität München, 80333 Munich, Germany.
Physical review letters
|February 16, 2024
概括
我们介绍了量子张量交叉插取 (TCI),这是一个有效计算多变量函数的新方法. 这种方法平衡了准确性和内存使用,在凝聚物质物理学中对布里卢恩区域积分很有用.
科学领域:
- 计算物理学的计算物理.
- 应用数学 应用数学 应用数学
背景情况:
- 多变量函数在科学中是必不可少的,但在准确性和内存方面带来了计算挑战.
- 现有的方法,如量子表示和张量交叉插取 (TCI) 提供部分解决方案.
研究的目的:
- 介绍一个新的计算策略,量子 TCI,它结合了量子表示和TCI的优势.
- 证明量子 TCI 在实际科学应用中的有效性.
主要方法:
- 量子表示编码函数作为多指数张量,使用变量的二进制表示.
- 张量交叉位 (TCI) 提供了一种用于温和张量近似的方法.
- 拟议的量子 TCI 战略结合了这两种技术.
主要成果:
- 量子TCI成功地合并了量子代表和TCI的好处.
- 该方法被证明是有效的,用于计算Brillouin区域积分在凝聚物质物理学.
结论:
- 量子学TCI提供了一种强大的新工具,用于准确和内存高效计算多变量函数.
- 这种方法在各种科学领域,包括凝聚物质物理学,都有很大的应用潜力.
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