5 papers
Enhancing Quantum Metrology with High-order Fisher Information and Experiments
Xin-Zhu Liu, Jun-Li Jiang, Yan-Han Yang +4
Fisher information plays a central role in statistics and quantum metrology, providing the basis for the celebrated Cramér-Rao bound. In this work, we introduce a new information…
On Sufficient and Necessary Criteria of Multipartite Quantum Entanglement
Zhi-Bo Chen, Shao-Ming Fei
Based on the generalized Bloch representation, we study the separability and entanglement of arbitrary dimensional multipartite quantum states. Some sufficient and some necessary c…
Photonic Energy-Coherence Theorem and Experimental Validations
Yan-Han Yang, Xin-Zhu Liu, Jun-Li Jiang +5
Wave-particle duality, intertwining two inherently contradictory properties of quantum systems, remains one of the most conceptually profound aspects of quantum mechanics. By using…
A note on lower bounds of concurrence for arbitrary dimensional bipartite quantum states
Zhi-Bo Chen, Shao-Ming Fei
Quantification of quantum entanglement plays a crucial role in the study of quantum information tasks. We present analytical lower bounds for both concurrence and 2-concurrence bas…
Experimental verification of quantum battery capacity with an optical platform
Xue Yang, Yan-Han Yang, Xin-Zhu Liu +4
Quantum batteries, consisting of quantum cells, are anticipated to surpass their classical counterparts in performance because of the presence of quantum correlations. Recent theor…