Lee–Yang theory clearly demonstrates where the phase transition of many-body systems occurs and the asymptotic behavior near the phase transition using the partition function under complex parameters. The complex par...Lee–Yang theory clearly demonstrates where the phase transition of many-body systems occurs and the asymptotic behavior near the phase transition using the partition function under complex parameters. The complex parameters make the direct investigation of Lee–Yang theory in practical systems challenging. Here we construct a non-Hermitian quantum system that can correspond to the one-dimensional Ising model with imaginary parameters through the equality of partition functions. By adjusting the non-Hermitian parameter,we successfully obtain the partition function under different imaginary magnetic fields and observe the Lee–Yang zeros. We also observe the critical behavior of free energy in vicinity of Lee–Yang zero that is consistent with theoretical prediction. Our work provides a protocol to study Lee–Yang zeros of the one-dimensional Ising model using a single-qubit non-Hermitian system.展开更多
为探讨暖体假人的研究进展与未来发展趋势,本文以中国知网文献数据库、Web of Science为数据来源,收集并统计了暖体假人相关文献,并基于分析文献的发文量、关键词、机构等信息进行可视化分析,探究了暖体假人的研究现状,表征了当前暖体...为探讨暖体假人的研究进展与未来发展趋势,本文以中国知网文献数据库、Web of Science为数据来源,收集并统计了暖体假人相关文献,并基于分析文献的发文量、关键词、机构等信息进行可视化分析,探究了暖体假人的研究现状,表征了当前暖体假人技术的相关研究热点、研究现状,以及分析了未来的发展趋势。基于文献分析,研究认为暖体假人经过三代迭替,目前研究热点是非均匀出汗暖体假人的研制,未来需更好地模拟真人状态,则需要从测试方法进一步标准化,测试系统性能的计量校准规范进一步核查等领域展开研究。展开更多
基金supported by the National Key R&D Program of China (Grant No. 2021YFB3202800)the National Natural Science Foundation of China (Grant No. 12174373)+2 种基金the Chinese Academy of Sciences (Grant No. GJJSTD20200001)the Innovation Program for Quantum Science and Technology (Grant No. 2021ZD0302200)Anhui Initiative in Quantum Information Technologies (Grant No. AHY050000)。
文摘Lee–Yang theory clearly demonstrates where the phase transition of many-body systems occurs and the asymptotic behavior near the phase transition using the partition function under complex parameters. The complex parameters make the direct investigation of Lee–Yang theory in practical systems challenging. Here we construct a non-Hermitian quantum system that can correspond to the one-dimensional Ising model with imaginary parameters through the equality of partition functions. By adjusting the non-Hermitian parameter,we successfully obtain the partition function under different imaginary magnetic fields and observe the Lee–Yang zeros. We also observe the critical behavior of free energy in vicinity of Lee–Yang zero that is consistent with theoretical prediction. Our work provides a protocol to study Lee–Yang zeros of the one-dimensional Ising model using a single-qubit non-Hermitian system.
文摘为探讨暖体假人的研究进展与未来发展趋势,本文以中国知网文献数据库、Web of Science为数据来源,收集并统计了暖体假人相关文献,并基于分析文献的发文量、关键词、机构等信息进行可视化分析,探究了暖体假人的研究现状,表征了当前暖体假人技术的相关研究热点、研究现状,以及分析了未来的发展趋势。基于文献分析,研究认为暖体假人经过三代迭替,目前研究热点是非均匀出汗暖体假人的研制,未来需更好地模拟真人状态,则需要从测试方法进一步标准化,测试系统性能的计量校准规范进一步核查等领域展开研究。
