13 papers
Geometric Power Capacity of Coherent Ergotropy in Quantum Batteries
Dong-Ping Xuan, Zhi-Xi Wang, Hua Nan +1
We explore coherent ergotropy extraction in quantum batteries from a resource-geometric point of view. For an initial state , we quantify the coherent extraction process by the…
Estimating the concurrence for quantum states via symmetric measurements
Hao-Fan Wang, Wen Zhou, Lin Chen +1
We derive improved lower bounds of concurrence induced by symmetric measurements, which retains experimental feasibility without state tomography. More importantly, we resolve a re…
Enhanced separability criteria based on symmetric measurements
Yu Lu, Hao-Fan Wang, Meng Su +2
We present separability criteria based on local symmetric measurements. These experimental plausible criteria are shown to be more efficient in detecting entanglement than the curr…
Quantum Speed Limits Based on the Sharma-Mittal Entropy
Dong-Ping Xuan, Zhi-Xi Wang, Shao-Ming Fei
Quantum speed limits (QSLs) establish intrinsic bounds on the minimum time required for the evolution of quantum systems. We present a class of QSLs formulated in terms of the two-…
A new entanglement measure based on the total concurrence
Dong-Ping Xuan, Zhong-Xi Shen, Wen Zhou +2
Quantum entanglement is a crucial resource in quantum information processing, advancing quantum technologies. The greater the uncertainty in subsystems' pure states, the stronger t…
Quantum Separability Criteria Based on Symmetric Measurements
Yu Lu, Wen Zhou, Meng Su +3
We propose experimentally feasible separability criteria for bipartite systems based on local symmetric measurements. Through detailed examples, we demonstrate that our criteria ca…