摘要
目的:基于量子测量技术,研究如何保护开放系统中多体量子导引。方法:通过使用量子反转测量和量子弱测量的组合测量,得出保护多体量子导引的最优测量结果。结果:当无测量时,多体量子导引在退相干效应的影响下逐渐退化直至消失不见;当使用最优的测量结果时,多体量子导引随着测量强度的增强而逐渐恢复。结论:在开放系统中,量子弱测量能够有效地保护由于退相干效应而退化的多体量子导引。
Objective:To investigate the protection of multipartite quantum steering in open systems based on quantum measurements techniques.Methods:Optimal measurement outcome for protecting multipartite quantum steering is obtained by employing a combination of quantum reversal measurement and quantum weak measurement.Results:In the absence of measurements,multipartite quantum steering gradually degrades under the influence of decoherence effects until it vanishes.However,with the optimal measurement outcome,multipartite quantum steering gradually recovers as the measurement intensity increases.Conclusion:Quantum weak measurement can effectively protect multipartite quantum steering from degradation due to decoherence effects in open systems.
作者
孙文洋
曹浩
叶柳
SUN Wenyang;CAO Hao;YE Liu(School of Electrical and Electronic Engineering,Anhui Science and Technology University,Bengbu 233030,China;School of Physics and Optoelectronics Engineering,Anhui University,Hefei 230601,China;Key Laboratory of Functional Materials and Devices for Informatics of Anhui Higher Education Institutes,Fuyang Normal University,Fuyang 236037,China)
出处
《安徽科技学院学报》
2024年第3期96-101,共6页
Journal of Anhui Science and Technology University
基金
安徽省高校自然科学研究项目(2023AH051859,2022AH040235)
安徽省自然科学基金(2008085QF328)
阜阳师范大学省部级科研平台开放课题(FSKFKT003)
安徽科技学院重点建设学科建设经费。
关键词
退相干效应
多体量子导引
量子弱测量
Decoherence effect
Multipartite quantum steering
Quantum weak measurement
