Quantum entanglement has made its way to the top.
Scientists have measured the strange quantum phenomenon of entanglement in top quarks, the heaviest fundamental subatomic particles known. It’s the first detection of entanglement between pairs of quarks — a class of subatomic particles that make up larger particles, including protons and neutrons.
Particles that are entangled have properties that are linked, or correlated with one another, making the two behave as one unit even when separated by large distances (SN: 6/15/17). Entanglement is commonly studied in relatively small laboratory experiments using particles of light, or photons. In contrast, the new measurement demanded the world’s most powerful particle accelerator, the Large Hadron
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