Quantum Repeater Trial Ignites Hopes for Long-Distance Quantum Cryptography and Computation

New technology teases simple, photon-only alternative to existing high-maintenance quantum repeater technologiesA repeater for quantum communications has been prototyped that requires no expensive cryogenics or elaborate ion traps—only photons. As a result, international quantum cryptography and perhaps the beginnings of a long-distance quantum “internet” could be one step closer to…