Everyday life on the internet is insecure. Hackers can break into bank accounts or steal digital identities. Driven by AI, attacks are becoming increasingly sophisticated. Quantum cryptography promises more effective protection. It makes communication secure against eavesdropping by relying on the laws of quantum physics. However, the path toward a quantum internet is still fraught with technical hurdles.
I don’t get it. From my understanding it sounds like they measure (but not actually because that would affect the photon) and produce a copy of it at another point with it still being unknown. The „measuring“ is something something calculations, but how do they transfer information to create that photon again?