In a groundbreaking advancement in quantum physics, scientists have successfully transformed light into a supersolid—a state of matter that uniquely exhibits properties of both solids and superfluids. This remarkable achievement not only challenges our traditional understanding of light but also opens new avenues for technological innovation.
Understanding Supersolids: The Dual-Natured State
A supersolid is a paradoxical state of matter where particles are arranged in a fixed, crystalline structure (like a solid) yet can flow without friction (a characteristic of superfluids). This means that a supersolid maintains a rigid shape while allowing particles to move seamlessly within it. The concept of supersolidity has intrigued physicists since the 1970s, but creating such a state has proven challenging. Previous experiments achieved supersolidity in ultracold atomic gases near absolute zero.

The Experiment: Turning Light into a Supersolid
Researchers from Italy’s National Research Council (CNR), led by Dimitris Trypogeorgos and Daniele Sanvitto, have now extended the realm of supersolids to light itself. By directing laser light into a specially designed semiconductor platform made of aluminum gallium arsenide, they generated quasiparticles known as polaritons—hybrid entities that exhibit both light and matter characteristics. Through precise manipulation of these polaritons, the team induced a supersolid state, marking the first instance of light being transformed into such a form.
Implications for Technology and Quantum Research
This pioneering work has significant implications for various fields:
- Quantum Computing: Supersolid light could serve as a novel medium for qubits, potentially enhancing the stability and coherence of quantum information.
- Precision Sensing: The unique properties of supersolids may lead to the development of highly sensitive sensors, capable of detecting minute changes in environmental conditions.
- Fundamental Physics: Understanding the behavior of light in a supersolid state provides deeper insights into the nature of matter and energy, potentially informing future theoretical models.
Expert Perspectives
Daniele Sanvitto, one of the lead researchers, remarked, “This experiment not only demonstrates the versatility of light but also paves the way for exploring new quantum phases with hybrid light-matter systems.”
Visualizing the Breakthrough
For a more in-depth understanding of this discovery, you can watch the following video:
Conclusion
The successful transformation of light into a supersolid represents a monumental step in quantum physics, challenging conventional notions of matter and energy. As researchers continue to explore this phenomenon, we can anticipate further innovations that may revolutionise technology and deepen our understanding of the universe’s fundamental laws.