Quantum leap: Data teleported between computers at Oxford

Researchers from the University of Oxford published their findings in "Nature," detailing the process of transmitting data between two quantum computers using quantum teleportation. While the computers were only two yards apart, the experiment is designed to work over any distance.

This discovery is significant because it solves a major problem in the field of quantum computing. According to The Independent, instead of transistors, these computers utilize qubits, enabling more complex calculations. The challenge, however, remains the size of the equipment needed for data transmission. To integrate this technology into everyday life, specialists must find a way to miniaturize the necessary components.

Researchers are working to connect multiple quantum computers to operate as a single unit. Similar to traditional distributed processing, where many computers collaborate on a single problem, quantum computers can also be networked.

To link two quantum computers, quantum entanglement is essential. This means that quantum objects must be placed at both ends of the transmission. Entanglement puts both qubits in an unknown but correlated state. Scientists created two ion traps connected by a two-yard optical cable. Each trap housed a strontium ion and a calcium ion. The calcium ion served as local memory, and the strontium ion functioned as a quantum network interface.

The breakthrough came after numerous tests using Grover's algorithm. The network produced correct results in about 70% of cases. The errors were attributed not to the teleportation process but to local hardware operations. Experts believe that using commercial quantum hardware will enhance the accuracy of the results.