Schrödinger’s anthill: Quantum entanglement found in a crystal large enough to hold
Researchers at TU Wien have detected quantum entanglement in a centimeter-sized crystal, demonstrating that quantum effects can exist in macroscopic objects. By using quantum Fisher information, the team showed that the crystal's constituents act in a coordinated, entangled manner.
Why it matters
This finding bridges the gap between quantum information science and solid-state physics, challenging traditional boundaries of where quantum mechanics applies.
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?
The article provides a technical summary of a physics experiment without external bias.
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