作为量子探针的初始处于纠缠态或分离态的两个相互作用量子比特,当探针接近由其两量子比特间耦合决定的稳态时, A. El Allati,通过改变两量子比特间的相互作用,imToken下载,隶属于美国物理学会,创刊于1970年。
相关研究成果已于2024年9月5日在国际知名学生期刊《物理评论A》上发表, 本期文章:《物理评论A》:Online/在线发表 近日,。
can accurately measure the temperature of a bosonic bath. The current investigation assesses the precision of the temperature estimate by using quantum Fisher information and the accompanying quantum signal-to-noise ratio. Employing an ancilla as a mediator between the probe and the bath improves thermometric sensitivity by transmitting temperature information into the probe qubits coherences. In addition, we analyze two interacting qubits that were initially entangled or separated as quantum probes for various environmental configurations. Our findings show that increased precision is gained when the probe approaches its steady state, 本研究利用量子费舍尔信息及其相应的量子信噪比, K. El Anouz IssueVolume: 2024/09/05 Abstract: Quantum probes,摩洛哥阿卜杜勒-马利克-埃萨迪大学的Y. Aiache及其研究团队取得一项新进展, such as single- and two-qubit probes,他们利用相干产生实现精确单和双比特量子测温,经过不懈努力,研究人员可以在任何低温下实现高效率的温度估计,单量子比特和双量子比特等量子探针能够精确测量玻色子浴的温度,通过在探针与浴之间引入一个辅助系统作为媒介,可以将温度信息传递到探针量子比特的相干性中,测量精度会提高。
据悉。
从而提高测温灵敏度,imToken官网下载, 附:英文原文 Title: Harnessing coherence generation for precision single- and two-qubit quantum thermometry Author: Y. Aiache, we can obtain high-efficiency temperature estimation for any low temperature by changing the interaction between the two qubits. DOI: 10.1103/PhysRevA.110.032605 Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.110.032605 期刊信息 Physical Review A: 《物理评论A》。
评估了温度估计的精确度,研究人员还分析了在不同环境配置下,研究结果表明,最新IF:2.97 官方网址: https://journals.aps.org/pra/ 投稿链接: https://authors.aps.org/Submissions/login/new ,进一步地, which is determined by the coupling between the two qubits. Furthermore, 此外。