40 citations · 48 across the 12 of their papers we have counts for
12 papers
Toroidal helical pulses
Shuai Shi, Hongcheng Zhou, Junjie Shao +7
Toroidal topologies and helicity are pervasive in nature and hold basic importance in scientific research. In particular, the interplay between these features gives rise to fascina…
Observation of helical pulses
Ren Wang, Shuai Shi, Zeyi Zhang +4
Ultrafast spatiotemporal vortex pulses constitute a category within spatiotemporal topological waves. Nevertheless, the experimental realization of helical pulses single or few cyc…
Watermarking Graph Neural Networks via Explanations for Ownership Protection
Jane Downer, Yingdan Shi, Ziyan Liu +2
Graph Neural Networks (GNNs) are widely deployed in industry, making their intellectual property valuable. However, protecting GNNs from unauthorized use remains a challenge. Water…
Double-Helix Singularity and Vortex-Antivortex Annihilation in Space-Time Helical Pulses
Shuai Shi, Ren Wang, Minhui Xiong +3
Topological structures reveal the hidden secrets and beauty in nature, such as the double helix in DNA, whilst, the manipula-tion of which in physical fields, especially in ultrafa…
Hybrid electromagnetic toroidal vortices
Ren Wang, Beier Ying, Shuai Shi +4
The ubiquitous occurrence of toroidal vortices or vortex rings in fluid-dynamic scenarios in nature has garnered significant attention of scientific frontier, whilst, the electroma…
Single-antenna super-resolution positioning with nonseparable toroidal pulses
Ren Wang, Pan-Yi Bao, Bing-Zhong Wang +1
The fundamental principle of satellite or node-based positioning involves triangulating the receiver's coordinates through the intersection of spatial distances. Recent advancement…
Propagation-invariant strongly longitudinally polarized toroidal pulses
Ren Wang, Ding-Tao Yang, Tao Xin +3
Recent advancements in optical, terahertz, and microwave systems have unveiled non-transverse optical toroidal pulses characterized by skyrmionic topologies, fractal-like singulari…
Simultaneous Localization and Recognition of Subwavelength Non-Cooperative Entities Based on SISO Time Reversal and Neural Networks
Yinchen Wang, Yu Duan, Yu-Qi Ye +5
The simultaneous localization and recognition of subwavelength non-cooperative entities within complex multi-scattering environments using a simplified system continues to pose a s…
Identifying Backdoored Graphs in Graph Neural Network Training: An Explanation-Based Approach with Novel Metrics
Jane Downer, Ren Wang, Binghui Wang
Graph Neural Networks (GNNs) have gained popularity in numerous domains, yet they are vulnerable to backdoor attacks that can compromise their performance and ethical application.…
Time-varying k-domain modulation around a point sink in time reversal cavity
Xin Liu, Jin-Shan Cui, Ren Wang +2
This paper derives and investigates a time-varying k-domain modulation in vector form using a time-reversal (TR) field decomposition theory proposed for the first time. First, the…
Inverse Design of Frequency Selective Surface Using Physics-Informed Neural Networks
Yu-Hang Liu, Bing-Zhong Wang, Ren Wang
This paper uses Physics-Informed Neural Network (PINN) to design Frequency Selective Surface (FSS). PINN integrates physical information into the loss function, so training PINN do…
Free-Space Propagation and Skyrmion Topology of Toroidal Electromagnetic Pulses
Ren Wang, Zhi-Qiang Hu, Pan-Yi Bao +4
Toroidal electromagnetic pulses have been recently reported as nontransverse, space-time nonseparable topological excitations of free space [Nat. Photon. 16, 523-528 (2022)]. Howev…