We have probably all heard discussions about the possibilities of quantum computing. Now I’ve been hearing a great deal more about quantum networks:
- University of Innsbruck released a paper titled: Tunable ion–photon entanglement in an optical cavity
- Max Planck Institute of Quantum Optics claims to have made World’s First Quantum Network Built with Two Atoms, One Photon
Quantum computing can be used to solve types of problems that today’s computing can’t address, but it has one big problem. Quantum information can’t be copied without being corrupted (per the no-cloning theorem). Instead, physicists are searching for ways to transfer quantum information between matter and light using entanglement, the quantum property in which the state of one particle depends on the state of another particle that can be some distance away.
These techniques could have significant impact on what we even think of as networking someday. I’ve not seen any estimate about when these techniques may be ready for production, but assume it is decades away.