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 ...

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

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

A small mathematical revision to quantum mechanics could effectively limit the purported infinite capacities of quantum ...

Quantum walks sound abstract, but they sit at the center of a very concrete race: who will harness quantum mechanics to solve problems that overwhelm today’s most powerful supercomputers. Instead of ...

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

The startup’s central idea to bring quantum computing to room temperature is even more outlandish than quantum itself: ...

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 ...

Fujitsu quantum researcher Shinji Kikuchi discusses the quantum computing paradigm shift expected around 2030, as well as how ...