Quantum entanglement in a crystal that fits in your hand

Scientists at TU Wien detected quantum entanglement in a macroscopic crystal, and the headlines only tell half the story. This isn’t the pocket-sized quantum computer they’re promising: it’s something stranger and more interesting.

In this episode, I analyze the study published in Nature Physics: what exactly they measured using quantum Fisher information, why strange metals challenge classical theory, and what connection exists with high-temperature superconductors. I also cut through the hype: detecting collective entanglement in a material is not the same as controlling it qubit by qubit, and that difference changes the entire landscape of metrology and quantum computing.

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