Scientists found a way to 'cheat' the fundamental rules of the universe to get more information out of a quantum system than should be allowed.
April 13, 2026
Original Paper
Beating three-parameter precision trade-offs with entangling collective measurements
arXiv · 2604.08871
The Takeaway
Standard physics says you can't measure certain things perfectly at the same time. By linking particles together through entanglement, researchers proved they can bypass these trade-offs and reach a new level of precision.
From the abstract
Quantum-mechanical incompatibility, which precludes the simultaneous precise measurement of non-commuting observables, imposes fundamental limits on the rate at which classical information can be extracted. While the potential to surpass these limits using entangling collective measurements has been explored for two parameters, the regime of three or more parameters remains largely unexplored despite its fundamental and technological importance. Here, we investigate the three-parameter trade-off