New research suggests the quantum nature of hypothetical axion dark matter may be fundamentally impossible to detect with current technology.
Although axions should behave according to quantum physics, scientists argue their signals become so diluted across enormous particle populations that detectors only perceive a smooth, classical field.
The study concludes that distinguishing true quantum effects could require observation times longer than the age of the universe itself, reinforcing why classical wave models still dominate the search for dark matter.
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