Scientists Discover "Virtual Charges" in Light-Matter Interactions

Posted on Sep 29, 2025 / Technology

Scientists Discover

Researchers at Politecnico di Milano have discovered "virtual charges"—charge carriers that exist only during their interaction with light. Published in Nature Photonics on September 28, 2025, the study uncovers a crucial factor often overlooked in modern physics and photonics. These virtual charges significantly impact how a material responds when struck by extremely brief flashes of light. Understanding their role could lead to advancements in optical technologies and materials science. The discovery opens new avenues for research in light-matter interactions and their applications in various technological fields.



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