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Quantum Wonders card QTM-28, Entanglement, with a glowing paper-cut illustration. It reads: Measure two entangled particles, however far apart: each result is random, yet when you compare them, they always pair up.

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Entangled

Entanglement

What’s going on

Entangled particles share one joint description instead of having separate ones. Measure the same property on both and each result looks like a coin toss, yet the two always agree (or always disagree, depending on how they were made). This is not because they settled on answers in advance; Bell tests have ruled that out. And no message passes between them.

Myth

Entanglement lets you send instant messages.

Fact

It can’t; each side alone sees only randomness.

Learn more

Nobel Prize in Physics 2022, press release, nobelprize.org.

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QTM-28 from Quantum Wonders, free quantum physics cards for ages 10 to adult

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