超导量子处理器上受U(1)对称性保护的Floquet预热化相
量子物理
2022-02-02 v1
摘要
周期驱动系统，或称Floquet系统，展现出许多新颖的动力学和有趣的非平衡物质相。那些随量子系统对称性（如整体对称性）而出现的相，甚至可表现出具有对称性保护的动力学稳定性。在此，我们通过在超导量子处理器上执行数字-模拟量子模拟，实验演示了一个受对称性保护的预热化相。该相的动力学稳定性通过其抵御外部扰动的鲁棒性得以揭示。我们还发现该相中的自旋玻璃序参量由自旋间的相互作用所稳定。我们的工作揭示了利用数字-模拟量子模拟器发现涌现量子动力学相的良好前景。
引用
@article{arxiv.2107.07311,
title = {Floquet Prethermal Phase Protected by U(1) Symmetry on a Superconducting Quantum Processor},
author = {Chong Ying and Qihao Guo and Shaowei Li and Ming Gong and Xiu-Hao Deng and Fusheng Chen and Chen Zha and Yangsen Ye and Can Wang and Qingling Zhu and Shiyu Wang and Youwei Zhao and Haoran Qian and Shaojun Guo and Yulin Wu and Hao Rong and Hui Deng and Futian Liang and Jin Lin and Yu Xu and Cheng-Zhi Peng and Chao-Yang Lu and Zhang-Qi Yin and Xiaobo Zhu and Jian-Wei Pan},
journal= {arXiv preprint arXiv:2107.07311},
year = {2022}
}
备注
14 pages, 4 figures, and supplementary materials