19 citations · 39 across the 8 of their papers we have counts for
8 papers
Is AI Robust Enough for Scientific Research?
Jun-Jie Zhang, Jiahao Song, Xiu-Cheng Wang +14
We uncover a phenomenon largely overlooked by the scientific community utilizing AI: neural networks exhibit high susceptibility to minute perturbations, resulting in significant d…
Symmetry Breaking in Neural Network Optimization: Insights from Input Dimension Expansion
Jun-Jie Zhang, Nan Cheng, Fu-Peng Li +4
Understanding the mechanisms behind neural network optimization is crucial for improving network design and performance. While various optimization techniques have been developed,…
Leveraging Neural Networks with Attention Mechanism for High-Order Accuracy in Charge Density in Particle-in-Cell Simulation
Jian-Nan Chen, Jun-Jie Zhang
In this research, we introduce an innovative three-network architecture that comprises an encoder-decoder framework with an attention mechanism. The architecture comprises a 1st-or…
JefiPIC: A 3-D Full Electromagnetic Particle-in-Cell Simulator Based on Jefimenko's Equations on GPU
Jiannan Chen, Jun-Jie Zhang, Xueming Li +2
This paper presents a novel 3-D full electromagnetic particle-in-cell (PIC) code called JefiPIC, which uses Jefimenko's equations as the electromagnetic (EM) field solver through a…
On the uncertainty principle of neural networks
Jun-Jie Zhang, Dong-Xiao Zhang, Jian-Nan Chen +2
In this study, we explore the inherent trade-off between accuracy and robustness in neural networks, drawing an analogy to the uncertainty principle in quantum mechanics. We propos…
Charge-dependent directed flows in heavy-ion collisions by Boltzmann-Maxwell equations
Jun-Jie Zhang, Xin-Li Sheng, Shi Pu +4
We have calculated the directed flow and charge-dependent directed flow for pions and protons in Au+Au collisions at GeV by solving the coupled…
JefiGPU: Jefimenko's Equations on GPU
Jun-Jie Zhang, Jian-Nan Chen, Guo-Liang Peng +2
We have implemented a GPU version of the Jefimenko's equations -- JefiGPU. Given the proper distributions of the source terms (charge density) and (current density…
Two typical collective behaviors of the heavy ions expanding in cold plasma with ambient magnetic field
Guo-Liang Peng, Jun-Jie Zhang, Jian-Nan Chen +2
We have numerically studied the evolution of the heavy ions that expand in a cold background plasma at a large scale. Two typical collective behaviors of the heavy ions are identif…