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Quantum computing encryption is reshaping how we think about digital security in a world built on encrypted communication. Today's systems rely on mathematical complexity, but emerging quantum ...

After 30 months of fast-paced innovation in quantum algorithms, six research groups are hoping to hit paydirt. But there can be only one big winner—if there is a winner at all. I’m standing in front ...

One afternoon in October 1979, Gilles Brassard was swimming outside a beachfront hotel in San Juan, Puerto Rico, when a stranger swam up to him and changed the course of his career. Without so much as ...

You’re late for an important appointment. Just as you are leaving your house, you realise your phone is flat. Imagine you could charge it almost instantly by exploiting the strange rules of quantum ...

IBM is betting on hybrid systems being the future of near-term quantum computing, introducing a new computing architecture that uses both classical and quantum-specific technology to apply the ...

In quantum mechanics, the idea that quantum information can’t be duplicated is ironclad – or at least, it was. A surprising approach to backing up qubits, the basic units of quantum computers, appears ...

Quantum computers allow calculations to be performed at vastly greater speeds than current devices. Experts say that we could soon see quantum systems with commercial value. "By the end of the decade, ...

But after reading Decoherence and Quantum Darwinism, a book published in March 2025 by the physicist Wojciech Zurek, I’m excited by the possibility of an answer that does away with all those fanciful ...

The unveiling by IBM of two new quantum supercomputers and Denmark’s plans to develop “the world’s most powerful commercial quantum computer” mark just two of the latest developments in quantum ...

Quantum computers struggle because their qubits are incredibly easy to disrupt, especially during calculations. A new experiment shows how to perform quantum operations while continuously fixing ...

An unprecedently large quantum simulator could shed light on how exotic, potentially useful quantum materials work and help us optimise them in the future. Quantum computers may eventually harness ...