Most wireless signals have the same weakness. Introduce enough noise and interference, and the signal breaks down. The information gets corrupted. The connection drops. Every wireless engineer working on 6G is trying to solve some version of this problem.
A team of researchers at Southeast University in China has taken a fundamentally different approach. Instead of making signals more resistant to noise, they built a type of signal that uses noise as part of how it works. The paper was published this week in Nature Electronics, the highest-impact journal in the field.
Where this idea comes from
The concept starts with something called a skyrmion. In physics, a skyrmion is a tiny whirlpool-like structure found in certain magnetic materials. What makes it special is topological protection.
The word topology refers to properties of a shape that stay the same even when you distort or deform it. A donut and a coffee cup are topologically identical — both have exactly one hole, and no amount of stretching or squeezing will change that. A skyrmion’s structure is protected in the same way. It cannot be disrupted by small disturbances without being completely destroyed.
Researchers have known for years that electromagnetic fields can form structures that behave like skyrmions. These are called plasmonic skyrmions — swirling patterns of electromagnetic energy that carry the same topological protection as their magnetic counterparts. The challenge was turning that theoretical protection into something useful.
What the team built
The device is built around a platform with eight PIN diodes — small electronic switches that can be flipped on or off independently. With eight switches, there are 256 possible combinations of on and off states. Each combination produces a different electromagnetic pattern at the surface of the device. Two of those patterns turn out to be skyrmion structures: a Néel-type skyrmion and a meron, which is a half-skyrmion.
By leveraging electrical reconfigurability through PIN diodes, the team achieved ultra-fast switching between skyrmion states, enabling the synthesis of harmonic skyrmions in the time dimension. In plain terms: the device can switch between skyrmion patterns fast enough to encode information into the sequence of changes, creating a new way to carry data.
The team tested the platform in noisy wireless channels. The programmable topological skyrmions proved usable for robust multichannel wireless communications even in turbulent noise channels and extreme conditions. The topological protection that keeps the skyrmion pattern stable also keeps the encoded signal intact when the channel is filled with interference.
The sensing application
The same platform was then connected to a convolutional neural network — the type of AI system used for image recognition. Instead of recognising images, the system recognised physical objects placed near the device by analysing how each object disturbed the electromagnetic field pattern. The platform correctly identified 20 different animal figurines with 98.33% accuracy.
This matters because it demonstrates something beyond just a communications advance. A single device that can switch between transmitting information and identifying objects in its environment is the kind of integrated hardware that future wireless infrastructure and robotic sensing systems are expected to need.
What this changes
The immediate implication is for wireless communications in contested or noisy environments. Military communications, industrial control systems in electrically noisy factories, and sensors in high-interference environments are the natural first targets. For conventional radios, these are the hardest environments to operate in. For a skyrmion-based system, the topological structure of the signal means interference that would destroy a conventional signal leaves the encoded information intact.
The longer-term implication is architectural. If skyrmion-based platforms can be miniaturised and integrated into standard photonic and RF hardware, they represent a new physical layer for wireless communication — one built on topological physics rather than conventional wave propagation.
The research was led by Tie Jun Cui, one of the most cited researchers in programmable electromagnetics globally, and represents the first demonstrated use of skyrmions in real wireless communication and sensing applications.
Sources
Quotes and technical details in this article are drawn from the abstract of the paper as published in Nature Electronics on 29 April 2026 (online) and 5 May 2026 (issue date). DOI: 10.1038/s41928-026-01611-6.
Primary source Chen, L., Li, X.Y., Shen, Y. et al. “Programmable skyrmions for communication and sensing.” Nature Electronics (2026). DOI: 10.1038/s41928-026-01611-6 URL: https://www.nature.com/articles/s41928-026-01611-6
News & Views summary (same issue) “A reconfigurable skyrmion device for communications and sensing applications.” Nature Electronics (2026). DOI: 10.1038/s41928-026-01612-5 URL: https://www.nature.com/articles/s41928-026-01612-5
Lead author institutional affiliation Tie Jun Cui — Suzhou Laboratory, Suzhou, China and State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, China URL: https://scholar.google.com/citations?user=gBcMkBsAAAAJ
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Sam Brown holds a BSc in Electronic Systems Engineering from University of Regina, a Masters from the University of Alberta and a PhD from the University of Toronto in Electrical Engineering. His reporting interests include Physics and Artificial Intelligence.