papers

Publications (8)

math.CO2026

On the Smallest Eigenvalues and Quantum Chromatic Numbers of Hamming Graphs and Generalizations

Yu Ning, Jack H. Koolen, Xiande Zhang

The smallest eigenvalues of (distance-j) Hamming graphs with distance parameter j at least half the length were completely determined by Brouwer et al. (2018). In the present work,…

quant-ph2024

Extremal Maximal Entanglement

Wanchen Zhang, Yu Ning, Fei Shi +1

A pure multipartite quantum state is called absolutely maximally entangled if all reductions of no more than half of the parties are maximally mixed. However, an -qubit absolute…

quant-ph2025

Linear Programming Bounds on -Uniform States

Yu Ning, Fei Shi, Tao Luo +1

The existence of -uniform states has been a widely studied problem due to their applications in several quantum information tasks and their close relation to combinatorial objec…

nucl-th2023

Study of neutron density fluctuation and neutron-proton correlation in Au+Au collisions using PYTHIA8/Angantyr

Zhang Zuman, Li Sha, Yu Ning +4

Utilizing the PYTHIA8 Angantyr model, which incorporates the multiple-parton interactions (MPI) based color reconnection (CR) mechanism, we study the relative neutron density fluct…

cs.NI2026

A method for detecting spatio-temporal correlation anomalies of WSN nodes based on topological information enhancement and time-frequency feature extraction

Miao Ye, Ziheng Wang, Qiuxiang Jiang +4

Existing anomaly detection methods for Wireless Sensor Networks (WSNs) generally suffer from insufficient extraction of spatio-temporal correlation features, reliance on either tim…

quant-ph2023

Bounds on -Uniform Quantum States

Fei Shi, Yu Ning, Qi Zhao +1

Do -partite -uniform states always exist when ? In this work, we provide new upper bounds on the parameter for the existence of -uni…