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A Message That Cannot Be Copied ⚡ экспресс

Original: "The uncloneable bit exists"
arXiv:2603.08916 · 2026-03-09 · CC BY · ⏱ 1 min · Quantum Physics
A new quantum cipher prevents two eavesdroppers from reading the message simultaneously, even if both have the key.
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The same note cannot be read twice — if two people try to read it at once, the text vanishes. This isn't magic, it's quantum physics, and scientists have just built such perfect protection that no tricks by eavesdroppers can defeat it.

🎯 The no-cloning theorem for quantum states is already used in banking communication lines: any attempt to eavesdrop on the transmission is immediately detected.

Scientists
Christian DopplerD. B. McLaughlinDidier QuelozMichel MayorR. A. RossiterStephen Hawking
Tags
entropy black hole speed of light
Laws
second law of thermodynamicsDoppler effectHawking radiationgravitational lensingprinciple of constancy of the speed of lightBekenstein-Hawking entropy
Original: arXiv:2603.08916 · CC BY · bridge42worlds