Quantum ‘Jamming’ Could Help Unlock the Mysteries of Causality

Key Takeaways

• The original version of this story appeared in Quanta Magazine.
• For the past few decades, researchers have understood that quantum computers should eventually be able to crack the widely used codes that secure much of the digital world.
• To protect against this fate, they’ve spent years developing new codes that appear to be safe from future safecrackers armed with quantum computers.
• At the same time, they’ve also devised ingenious ways to use the rules of quantum mechanics to keep communications secure.
• But quantum mechanics, just like the “classical” mechanics that preceded it, is just a theory of nature.