在41量子比特超导处理器上对拓式零模式进行量子模拟.
Yun-Hao Shi1,2,3, Yu Liu1,2, Yu-Ran Zhang4,5,6
1Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
Physical review letters
|September 8, 2023
概括
研究人员使用了一个43量子比特量子处理器来模拟量子物质的异国情调拓相. 他们通过实验展示了霍夫斯塔特蝶,并验证了拓式零模式,推进了量子模拟能力.
科学领域:
- 量子物理学的量子物理学
- 凝聚物质物理学 凝聚物质物理学
- 量子信息科学是一种量子信息科学.
背景情况:
- 量子模拟对于理解物质的异国情调拓阶段至关重要.
- 噪音中级量子处理器 (NISQ) 为此类模拟提供了一个平台.
- 描述拓状态需要先进的实验技术.
研究的目的:
- 开发和利用一个43量子比特超导量子处理器来模拟拓相.
- 通过工程设计的奥布里-安德烈-哈珀 (AAH) 模型来实验证明霍夫斯塔特蝶光谱.
- 为了验证先前未实现的相称非对角AAH模型中存在拓式零模式.
主要方法:
- 一个43量子比特超导量子处理器的开发,名为Chuang-tzu.
- 对角和离对角的奥布里-安德烈-哈珀 (AAH) 模型的工程.
- 应用Floquet工程来研究拓性质.
- 复杂带结构的实验演示,包括迪拉克点和能量差距的缩小.
主要成果:
- 霍夫斯塔特蝶能量频谱的成功实验演示.
- 在相应的非对角形AAH模型中首次实验验证拓式零模式.
- 由于量子比特数量大,观测了大量的拓特征,包括边缘和散装状态的区别.
- 对拓系统的混合量子模拟方法的验证.
结论:
- 43量子比特处理器使量子拓系统的详细模拟和表征成为可能.
- 该研究提供了一种多功能混合方法,用于探索NISQ时代的拓阶段.
- 拓式零模式的实验实现为量子物质研究开辟了新的途径.
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