Quantum networks open a new approach to investigate quantum correlations unveiling novel structures of entanglement known as quantum network-entanglement. Interestingly, the resource theory underlying quantum network-entanglement diverges significantly from that of traditional multipartite entanglement, where Local Operations and Classical Communication (LOCC) are free. Instead, LOCC operations become the primary resource in the context of quantum network-entanglement. In this talk, I will provide a succinct overview of our latest advancements in this burgeoning field. This encompasses the development of criteria for distinguishing graph states and symmetric states from network states, essential for understanding the intricate nature of quantum entanglement within network structures. Additionally, I will delve into the characterization of quantum networks within the noisy intermediate-scale quantum era, elucidating the challenges and opportunities in harnessing entanglement amidst practical imperfections. Furthermore, I will discuss measures tailored specifically for quantifying quantum network-entanglement, shedding light on its intrinsic properties and enabling its utilization in various quantum network tasks, such as metrology. 

Dr. Zhen-Peng Xu works currently at Anhui University. He graduated from the Chern Institute of Mathematics in Nankai University, after which he worked as a postdoctoral fellow at the University of Siegen, supported by the Humboldt Foundation in Germany. His research interests focus on quantum correlations in different systems, from single-partite systems, multipartite systems to recent quantum network systems. In the past years, he has published 21 SCI papers as (co-)first author or corresponding author, including 3 PRL and 1 NC, 1 Optica and 1 npj QI. Based on the previous work, he won the 2021 Ehrenfest Best Paper Award for Quantum Foundations from the Austrian Academy of Sciences.