Quantum Teleportation Achieved Between Two Machines
Oxford researchers demonstrated quantum teleportation between two quantum computers two meters apart, proving that location is irrelevant. This breakthrough aids in linking multiple quantum machines, addressing a major challenge in quantum computing. Instead of traditional transistors, quantum computers use qubits, which require entanglement to communicate.
In their experiment, scientists used ion traps connected by an optical cable, employing calcium and strontium ions for memory and network interfacing. Entanglement, though not always successful, was detectable, allowing repeated attempts without resetting. They successfully teleported quantum operations with 70% accuracy, with errors stemming from hardware rather than teleportation.
This advancement paves the way for quantum networking, though challenges like optical cable limitations and network noise remain. Despite being in its early stages, the ability to transfer qubit states losslessly marks a significant step toward distributed quantum computing.