Quantum computers still can’t do much. Almost every time researchers have found something the high-tech machines should one day excel at, a classical algorithm comes along that can do it just as well ...

Building on a landmark algorithm, researchers propose a way to make a smaller and more noise-tolerant quantum factoring circuit for cryptography. The most recent email you sent was likely encrypted ...

This article predates the current owners of Science Blog. It has not been reviewed under the current editorial process and is kept as part of the archive. This new algorithm requires fewer quantum ...