Scientists have uncovered surprisingly strong quantum entanglement inside a hand-sized crystal, revealing that even macroscopic materials can behave in profoundly quantum ways. A centimeter-sized crystal has revealed clear signs of quantum entanglement, showing that large, everyday objects can display surprisingly deep quantum behavior. The discovery could help solve the mystery of strange metals while opening new possibilities for ultra-precise quantum sensors and other advanced technologies.
Quantum phenomena are usually associated with extremely small objects such as individual atoms, molecules, or photons that must be carefully isolated from their surroundings. But can those same strange quantum effects also exist in objects large enough to see and hold?
Researchers at TU Wien have now provided compelling evidence that they can. By studying a centimeter-sized crystal made from a type of material known as a strange metal, the team detected a high degree of quantum entanglement, one of the most remarkable features of quantum physics. They accomplished this using a technique from quantum information science called quantum Fisher information.
