Probing spin hydrodynamics on a superconducting quantum simulator
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arXiv
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2023
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| author | Shi, Yun-Hao Sun, Zheng-Hang Wang, Yong-Yi Wang, Zheng-An Zhang, Yu-Ran Ma, Wei-Guo Liu, Hao-Tian Zhao, Kui Song, Jia-Cheng Liang, Gui-Han Mei, Zheng-Yang Zhang, Jia-Chi Li, Hao Chen, Chi-Tong Song, Xiaohui Wang, Jieci Xue, Guangming Yu, Haifeng Huang, Kaixuan Xiang, Zhongcheng Xu, Kai Zheng, Dongning Fan, Heng |
| author_facet | Shi, Yun-Hao Sun, Zheng-Hang Wang, Yong-Yi Wang, Zheng-An Zhang, Yu-Ran Ma, Wei-Guo Liu, Hao-Tian Zhao, Kui Song, Jia-Cheng Liang, Gui-Han Mei, Zheng-Yang Zhang, Jia-Chi Li, Hao Chen, Chi-Tong Song, Xiaohui Wang, Jieci Xue, Guangming Yu, Haifeng Huang, Kaixuan Xiang, Zhongcheng Xu, Kai Zheng, Dongning Fan, Heng |
| contents | Characterizing the nature of hydrodynamical transport properties in quantum dynamics provides valuable insights into the fundamental understanding of exotic non-equilibrium phases of matter. Experimentally simulating infinite-temperature transport on large-scale complex quantum systems is of considerable interest. Here, using a controllable and coherent superconducting quantum simulator, we experimentally realize the analog quantum circuit, which can efficiently prepare the Haar-random states, and probe spin transport at infinite temperature. We observe diffusive spin transport during the unitary evolution of the ladder-type quantum simulator with ergodic dynamics. Moreover, we explore the transport properties of the systems subjected to strong disorder or a tilted potential, revealing signatures of anomalous subdiffusion in accompany with the breakdown of thermalization. Our work demonstrates a scalable method of probing infinite-temperature spin transport on analog quantum simulators, which paves the way to study other intriguing out-of-equilibrium phenomena from the perspective of transport. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_06565 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Probing spin hydrodynamics on a superconducting quantum simulator Shi, Yun-Hao Sun, Zheng-Hang Wang, Yong-Yi Wang, Zheng-An Zhang, Yu-Ran Ma, Wei-Guo Liu, Hao-Tian Zhao, Kui Song, Jia-Cheng Liang, Gui-Han Mei, Zheng-Yang Zhang, Jia-Chi Li, Hao Chen, Chi-Tong Song, Xiaohui Wang, Jieci Xue, Guangming Yu, Haifeng Huang, Kaixuan Xiang, Zhongcheng Xu, Kai Zheng, Dongning Fan, Heng Quantum Physics Disordered Systems and Neural Networks Other Condensed Matter Statistical Mechanics Characterizing the nature of hydrodynamical transport properties in quantum dynamics provides valuable insights into the fundamental understanding of exotic non-equilibrium phases of matter. Experimentally simulating infinite-temperature transport on large-scale complex quantum systems is of considerable interest. Here, using a controllable and coherent superconducting quantum simulator, we experimentally realize the analog quantum circuit, which can efficiently prepare the Haar-random states, and probe spin transport at infinite temperature. We observe diffusive spin transport during the unitary evolution of the ladder-type quantum simulator with ergodic dynamics. Moreover, we explore the transport properties of the systems subjected to strong disorder or a tilted potential, revealing signatures of anomalous subdiffusion in accompany with the breakdown of thermalization. Our work demonstrates a scalable method of probing infinite-temperature spin transport on analog quantum simulators, which paves the way to study other intriguing out-of-equilibrium phenomena from the perspective of transport. |
| title | Probing spin hydrodynamics on a superconducting quantum simulator |
| topic | Quantum Physics Disordered Systems and Neural Networks Other Condensed Matter Statistical Mechanics |
| url | https://arxiv.org/abs/2310.06565 |