A team of physicists set out to test some of the most exciting claims in quantum computing—and found a very different story. Instead of confirming breakthroughs, their careful replication studies ...

Quantum circuits are supposed to gain power as they grow longer, but noise changes the picture. A new study finds that earlier steps in these circuits gradually lose their impact, with only the final ...

Building a utility-scale quantum computer that can crack one of the most vital cryptosystems—elliptic curves—doesn’t require ...

A new quantum system called giant superatoms could protect quantum information and enable entanglement between multiple ...

Naoris Protocol says its blockchain network uses quantum-resistant cryptography, as the wider crypto industry prepares for ...

Dr. Dominic Williamson, a University of Sydney quantum physicist, has developed a new approach to quantum error correction that could significantly reduce the number of physical qubits required to ...

Quantum computers are developing more quickly than expected – and so is the threat to our current computer security ...

A major problem with quantum computers is memory, as the information they contain can be quickly lost. Quantum computers are ...

A compact microwave-photon detector built from a semiconductor double quantum dot and a superconducting cavity could sharpen ...

What once took up the entire space of IBM’s early computer lab now fits on a chip. The question is how and when will the ...

CZ says crypto can survive quantum computing threats. Here's what Google's quantum breakthrough means for Bitcoin and ...

Google's new whitepaper says it could take only minutes for a quantum system to crack Bitcoin.