A single pair of entangled particles gives communication systems a 5.4% higher chance of dodging signal jammers than any possible classical technology.
April 24, 2026
Original Paper
Quantum Advantage for Coordinated Frequency Selection Against Distributed Jammers
arXiv · 2604.20647
The Takeaway
Entangled Bell pairs allow two parties to coordinate their communication frequencies with a success rate that beats the best classical strategies. When an enemy tries to jam a signal, the two parties must perfectly sync their frequency hops to stay connected. Using quantum entanglement allows them to make these choices in a way that is mathematically impossible to replicate with traditional radios. This provides a direct, measurable quantum advantage in electronic warfare. It is one of the first practical examples of quantum tech being used to secure everyday wireless communications against hackers or military jammers.
From the abstract
Consider two parties who want to agree on a common frequency band for communication in the presence of independent jammers. Such jammers block a different subset of bands at each site, where each party can observe only its own set of unjammed bands. Yet, they must agree on a common band without communicating. We first establish the optimal classical strategy, maximizing the probability they output a common frequency band in a single shot. We proceed to show that sharing an entangled pair of loca