4 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…
Pre-Channel Entanglement Shaping Achieves Fundamental Superiority over Post-Distillation: A Geometric Entropy Perspective
Gang Lyu, Wenlong Sun, Yuanfeng Jin +1
Traditional entanglement distillation follows a post-processing paradigm, a noisy quantum state, after full transmission through a noisy channel, is treated as a static resource to…
Quantum partial coherence measures constructed from Fisher information
Dong-Ping Xuan, Zhong-Xi Shen, Wen Zhou +3
Quantum mechanics gives a new breakthrough to the field of parameter estimation. In the realm of quantum metrology, the precision of parameter estimation is limited by the quantum…
Uncertainty relation and the constrained quadratic programming
Lin Zhang, Dade Wu, Ming-Jing Zhao +1
The uncertainty relation is a fundamental concept in quantum theory, plays a pivotal role in various quantum information processing tasks. In this study, we explore the additive un…