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Pure, verifiable randomness is hard to come by. Two proposals show how to make quantum computers into randomness factories.

An experiment caught a quantum system in the middle of a jump — something the originators of quantum mechanics assumed was impossible.

The universe of problems that a computer can check has grown. The researchers’ secret ingredient? Quantum entanglement.

Quantum computers can’t selectively forget information. A new algorithm for multiplication shows a way around that problem.

These games combine quantum entanglement, infinity and impossible-to-calculate winning probabilities. But if researchers can crack them, they’ll reveal deep mathematical secrets.

A two-player game can reveal whether the universe has an infinite amount of complexity.

In a Paris lab, researchers have shown for the first time that quantum methods of transmitting information are superior to classical ones.

A recent experiment shows how quantum mechanics can make heat flow from a cold body to a hot one, an apparent (though not real) violation of the second law of thermodynamics.

As physicists extend the 19th-century laws of thermodynamics to the quantum realm, they’re rewriting the relationships among energy, entropy and information.

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