The future of super-fast and secure communication will be based on the phenomenon of quantum entanglement. Scientists have just taken another milestone towards building such a practical network, free from the surveillance we know best tips online.
Intensive work in this direction is carried out at the QuTech University in the city of Delft in the Netherlands. Engineers created the world’s first link layer protocol that transfers quantum entanglement from experimental physics to real quantum networks.
Experts boast that the day is coming, when quantum Internet will become reality, and their building blocks will be the most important contribution to the creation of this technology of tomorrow. The most important aspect will be the ability to create extremely advanced applications that cannot be built and used using classic Internet.
Quantum Internet work has just been published on ACM SIGCOMM. Scientists managed to create the so-called link layer protocol. It defines the format of packets exchanged between nodes at the end of links, as well as the actions taken by these nodes when sending and receiving packets. In other words, it is a protocol used, among others, in Wi-Fi networks.
Classic protocols are not suitable for use in the quantum world. The qubits, which are used for communication, cannot be stored in memory, and must be sent quickly by protocols. Here, the information exchange system differs between classical and quantum networks. In a traditional network, information is sent in packets, and in a quantum network everything is based on the entanglement of quantum bits. Therefore, scientists had to develop a completely new link layer protocol to overcome this problem.
The power of quantum networks is to be the level of security unavailable until now. In the communication of two entangled particles that can exchange information for two users, it is physically impossible to interfere and eavesdrop on it. Researchers at the QuTech University have reported that their quantum link layer protocol will also be compatible with future quantum equipment.
Engineers announce that the next step will be to create entanglement between network nodes that are not directly connected by fiber optics using an intermediate node. To implement large-scale quantum networks, it’s important to go beyond the physics experiment and move towards building a practical quantum network, which will happen in a few years.