To keep communications secure in a post-quantum world, cryptographers are digging down into the concept of cause and effect.

Quantum batteries could one day charge electronics much quicker than standard ones thanks to the odd quantum phenomenon of being able to be in two places at once. Electrochemical batteries, including ...

Some quantum cryptographers want to find ways to keep messages secret even if the rules of quantum mechanics don’t hold. The recently rediscovered idea of quantum jamming complicates things. For the ...